v7.0.0-rc.10

- Fixed an issue where dependency hooks were not being reduced properly, thus the table would rerender unnecessarily
- Renamed `toggleRowSelectedAll` to `toggleAllRowsSelected`. Duh...
- Added an `indeterminate` boolean prop to the default props for row selection toggle prop getters
- Renamed `selectedRowPaths` to `selectedRowIds`, which also no longer contains paths, but row IDs
- Grouped or nested row selection actions and state are now derived, instead of tracked in state.
- Rows now have a new property called `id`, which existed before and was derived from the `getRowId` option
- Rows now also have an `isSomeSelected` prop when using the `useRowSelect` hook, which denotes that at least one subRow is selected (if applicable)
- Rows' `path` property has been deprecated in favor of `id`
- Expanded state is now tracked with row IDs instead of paths
- RowState is now tracked with row IDs instead of paths
- `toggleExpandedByPath` has been renamed to `toggleExpandedById`, and thus accepts a row ID now, instead of a row path

.babelrc

@@ -3,7 +3,8 @@
     [
       "@babel/preset-env",
       {
-        "modules": false
+        "modules": false,
+        "loose": true
       }
     ],
     "@babel/react"

.size-snapshot.json

@@ -1,20 +1,20 @@
 {
   "dist/index.js": {
-    "bundled": 108184,
-    "minified": 51333,
-    "gzipped": 13486
+    "bundled": 104720,
+    "minified": 48438,
+    "gzipped": 13005
   },
   "dist/index.es.js": {
-    "bundled": 107341,
-    "minified": 50583,
-    "gzipped": 13333,
+    "bundled": 103833,
+    "minified": 47648,
+    "gzipped": 12849,
     "treeshaked": {
       "rollup": {
         "code": 80,
         "import_statements": 21
       },
       "webpack": {
-        "code": 8904
+        "code": 8227
       }
     }
   },

CHANGELOG.md

@@ -1,3 +1,38 @@
+## 7.0.0-rc.10
+
+- Optimizations made to make accessors, prop getters and other internals much faster. 10x in some cases!
+- Fixed docs for `usePagination` to have `pageIndex` and `pageSize` only available on the state object, not the instance
+- Added a plugin order restriction to make sure `useResizeColumns` always comes before `useAbsoluteLayout`
+- Fixed the `useFinalInstance` hook to not have an empty array as the first meta argument passed.
+- Fixed an issue where memoized or ref-forwarded components could not be used as cell renderers
+- The `toggleExpandedById` action has been renamed to `toggleExpanded`
+- Added the `toggleAllExpanded` action
+- Added the `setExpanded` action
+- Changed `row.isAggregated` to `row.isGrouped`
+- `state.expanded` and `state.selectedRowIds` are now objects (`{[rowId]: Bool}`), not arrays. This should help with mid-to-large size datasets while also being serializable (instead of a Set(), which is not as reliable)
+- `state.filters` is now an array of objects (`{id, value}`). Since filters do have order and can be applied incrementally, it should be an array to ensure correct order.
+- Moved the `flatColumns` and `flatColumnsDeps` hooks to be after row/data materialization. These hooks can then manipulate the `flatColumns` object after all data has been accessed without triggering row materialization again.
+- Added the `row.allCells` property and the `cellColumns` reducer hook to determine which cells to create for each row. These cells are placed into `row.allCells`. The resulting cell array is not meant to be used for display in templating and is only made available for convenience and/or advanced templating.
+- Added the `cells` reducer hook to determine which cells from the `row.allCells` array that should be placed into `row.cells`. The resulting cell array is the one that is intended for display in templating.
+- Reducers are now passed the actual instance variable, not the instanceRef
+- Added the `makeRenderer` utility (also exported)
+- Removed `column.groupByBoundary` functionality. If needed, use the `flatColumns` hook to decorate, reorganize or re-order groupBy columns
+- Fixed grouped row.id's to be truly unique
+
+## 7.0.0-rc.9
+
+- Fixed an issue where dependency hooks were not being reduced properly, thus the table would rerender unnecessarily
+- Renamed `toggleRowSelectedAll` to `toggleAllRowsSelected`. Duh...
+- Added an `indeterminate` boolean prop to the default props for row selection toggle prop getters
+- Renamed `selectedRowPaths` to `selectedRowIds`, which also no longer contains paths, but row IDs
+- Grouped or nested row selection actions and state are now derived, instead of tracked in state.
+- Rows now have a new property called `id`, which existed before and was derived from the `getRowId` option
+- Rows now also have an `isSomeSelected` prop when using the `useRowSelect` hook, which denotes that at least one subRow is selected (if applicable)
+- Rows' `path` property has been deprecated in favor of `id`
+- Expanded state is now tracked with row IDs instead of paths
+- RowState is now tracked with row IDs instead of paths
+- `toggleExpandedByPath` has been renamed to `toggleExpandedById`, and thus accepts a row ID now, instead of a row path
+
 ## 7.0.0-rc.8
 
 - Fix an issue where `useResizeColumns` would crash when using the resizer prop getter
@@ -101,7 +136,7 @@ Modified:
 
 ## 7.0.0-beta.24
 
-- Changed `selectedRowPaths` to use a `Set()` instead of an array for performance.
+- Changed `selectedRowIds` to use a `Set()` instead of an array for performance.
 - Removed types and related files from the repo. The community will now maintain types externally on Definitely Typed
 
 ## 7.0.0-beta.23

README.md

@@ -182,6 +182,7 @@ This library is being built and maintained by me, @tannerlinsley and I am always
         <li>Robert Tajnšek</li>
         <li>Pekka Tapani</li>
         <li>Eric Lanehart (@pushred)</li>
+        <li>Anish P Patel (@anishpatelyaadada)</li>
         </ul>
       </td>
       <td>

docs/api/useColumnOrder.md

@@ -9,12 +9,10 @@
 
 The following options are supported via the main options object passed to `useTable(options)`
 
-- `state.columnOrder: Array<ColumnId>`
+- `initialState.columnOrder: Array<ColumnId>`
   - Optional
   - Defaults to `[]`
   - Any column ID's not represented in this array will be naturally ordered based on their position in the original table's `column` structure
-- `initialState.columnOrder`
-  - Identical to the `state.columnOrder` option above
 
 ### Instance Properties
 

docs/api/useExpanded.md

@@ -9,15 +9,13 @@
 
 The following options are supported via the main options object passed to `useTable(options)`
 
-- `state.expanded: Array<pathKey: String>`
+- `initialState.expanded: Object<rowId: String, expanded: Bool>`
   - Optional
   - Must be **memoized**
-  - An array of expanded path keys.
-  - If a row's path key (`row.path.join('.')`) is present in this array, that row will have an expanded state. For example, if `['3']` was passed as the `expanded` state, the **4th row in the original data array** would be expanded.
-  - For nested expansion, you may **join the row path with a `.`** to expand sub rows. For example, if `['3', '3.5']` was passed as the `expanded` state, then the **6th subRow of the 4th row and also the 4th row of the original data array** would be expanded.
+  - An `object` of expanded row IDs with boolean property values.
+  - If a row's id is set to true in this object, that row will have an expanded state. For example, if `{ '3': true }` was passed as the `expanded` state, by default the **4th row in the original data array** would be expanded, since it would have that ID
+  - For nested expansion, you can **use nested IDs like `1.3`** to expand sub rows. For example, if `{ '3': true, '3.5': true }` was passed as the `expanded` state, then the **the 4th row would be expanded, along with the 6th subRow of the 4th row as well**.
   - This information is stored in state since the table is allowed to manipulate the filter through user interaction.
-- `initialState.expanded`
-  - Identical to the `state.expanded` option above
 - `getSubRows: Function(row, relativeIndex) => Rows[]`
   - Optional
   - See the [useTable hook](#table-options) for more details
@@ -42,7 +40,7 @@ The following options are supported via the main options object passed to `useTa
 The following properties are available on the table instance returned from `useTable`
 
 - `rows: Array<Row>`
-  - An array of **sorted** rows.
+  - An array of **expanded** rows.
 
 ### Row Properties
 

docs/api/useFilters.md

@@ -9,11 +9,9 @@
 
 The following options are supported via the main options object passed to `useTable(options)`
 
-- `state.filters: Object<columnId: filterValue>`
+- `initialState.filters: Array<Object<id: String, value: any>>`
   - Must be **memoized**
-  - An object of columnId's and their corresponding filter values. This information is stored in state since the table is allowed to manipulate the filter through user interaction.
-- `initialState.filters`
-  - Identical to the `state.filters` option above
+  - An array of objects containing columnId's and their corresponding filter values. This information is stored in state since the table is allowed to manipulate the filter through user interaction.
 - `manualFilters: Bool`
   - Enables filter detection functionality, but does not automatically perform row filtering.
   - Turn this on if you wish to implement your own row filter outside of the table (eg. server-side or manual row grouping/nesting)

docs/api/useGroupBy.md

@@ -12,11 +12,9 @@
 
 The following options are supported via the main options object passed to `useTable(options)`
 
-- `state.groupBy: Array<String>`
+- `initialState.groupBy: Array<String>`
   - Must be **memoized**
   - An array of groupBy ID strings, controlling which columns are used to calculate row grouping and aggregation. This information is stored in state since the table is allowed to manipulate the groupBy through user interaction.
-- `initialState.groupBy`
-  - Identical to the `state.groupBy` option above
 - `manualGroupBy: Bool`
   - Enables groupBy detection and functionality, but does not automatically perform row grouping.
   - Turn this on if you wish to implement your own row grouping outside of the table (eg. server-side or manual row grouping/nesting)
@@ -96,9 +94,11 @@ The following properties are available on every `Row` object returned by the tab
   - If the row is a materialized group row, this property is the array of materialized subRows that were grouped inside of this row.
 - `depth: Int`
   - If the row is a materialized group row, this is the grouping depth at which this row was created.
-- `path: Array<String|Int>`
-  - Similar to normal `Row` objects, materialized grouping rows also have a path array. The keys inside it though are not integers like nested normal rows though. Since they are not rows that can be traced back to an original data row, they are given a unique path based on their `groupByVal`
-  - If a row is a grouping row, it will have a path like `['Single']` or `['Complicated', 'Anderson']`, where `Single`, `Complicated`, and `Anderson` would all be derived from their row's `groupByVal`.
+- `id: String`
+  - The unique ID for this row.
+  - This ID is unique across all rows, including sub rows
+  - Derived from the `getRowId` function, which defaults to chaining parent IDs and joining with a `.`
+  - If a row is a materialized grouping row, it will have an ID in the format of `columnId:groupByVal`.
 - `isAggregated: Bool`
   - Will be `true` if the row is an aggregated row
 

docs/api/usePagination.md

@@ -11,18 +11,14 @@
 
 The following options are supported via the main options object passed to `useTable(options)`
 
-- `state.pageSize: Int`
+- `initialState.pageSize: Int`
   - **Required**
   - Defaults to `10`
   - Determines the amount of rows on any given page
-- `initialState.pageSize`
-  - Identical to the `state.pageSize` option above
-- `state.pageIndex: Int`
+- `initialState.pageIndex: Int`
   - **Required**
   - Defaults to `0`
   - The index of the page that should be displayed via the `page` instance value
-- `initialState.pageIndex`
-  - Identical to the `state.pageIndex` option above
 - `pageCount: Int`
   - **Required if `manualPagination` is set to `true`**
   - If `manualPagination` is `true`, then this value used to determine the amount of pages available. This amount is then used to materialize the `pageOptions` and also compute the `canNextPage` values on the table instance.
@@ -31,7 +27,7 @@ The following options are supported via the main options object passed to `useTa
   - Turn this on if you wish to implement your own pagination outside of the table (eg. server-side pagination or any other manual pagination technique)
 - `autoResetPage: Boolean`
   - Defaults to `true`
-  - When `true`, the `expanded` state will automatically reset if `manualPagination` is `false` and any of the following conditions are met:
+  - When `true`, the `pageIndex` state will automatically reset if `manualPagination` is `false` and any of the following conditions are met:
     - `data` is changed
     - `manualSortBy` is `false` and `state.sortBy` is changed
     - `manualFilters` is `false` and `state.filters` is changed
@@ -49,6 +45,10 @@ The following options are supported via the main options object passed to `useTa
 
 The following values are provided to the table `instance`:
 
+- `state.pageIndex: Int`
+  - This is the current `pageIndex` value, located on the state.
+- `state.pageSize: Int`
+  - This is the current `pageSize` value, located on the state.
 - `page: Array<row>`
   - An array of rows for the **current** page, determined by the current `pageIndex` value.
 - `pageCount: Int`
@@ -73,10 +73,6 @@ The following values are provided to the table `instance`:
 - `setPageSize: Function(pageSize)`
   - This function sets `state.pageSize` to the new value.
   - As a result of a pageSize change, a new `state.pageIndex` is also calculated. It is calculated via `Math.floor(currentTopRowIndex / newPageSize)`
-- `pageIndex: Int`
-  - This is the resolved `state.pageIndex` value.
-- `pageSize: Int`
-  - This is the resolved `state.pageSize` value.
 
 ### Example
 

docs/api/useRowSelect.md

@@ -9,19 +9,17 @@
 
 The following options are supported via the main options object passed to `useTable(options)`
 
-- `state.selectedRowPaths: Set<RowPathKey>`
+- `initialState.selectedRowIds: Object<rowId: Boolean>`
   - Optional
-  - Defaults to `new Set()`
-  - If a row's path key (eg. a row path of `[1, 3, 2]` would have a path key of `1.3.2`) is found in this array, it will have a selected state.
-- `initialState.selectedRowPaths`
-  - Identical to the `state.selectedRowPaths` option above
+  - Defaults to `{}`
+  - If a row's ID is set to `true` in this object, it will have a selected state.
 - `manualRowSelectedKey: String`
   - Optional
   - Defaults to `isSelected`
   - If this key is found on the **original** data row, and it is true, this row will be manually selected
 - `autoResetSelectedRows: Boolean`
   - Defaults to `true`
-  - When `true`, the `expanded` state will automatically reset if any of the following conditions are met:
+  - When `true`, the `selectedRowIds` state will automatically reset if any of the following conditions are met:
     - `data` is changed
   - To disable, set to `false`
   - For more information see the FAQ ["How do I stop my table state from automatically resetting when my data changes?"](./faq#how-do-i-stop-my-table-state-from-automatically-resetting-when-my-data-changes)
@@ -33,7 +31,7 @@ The following values are provided to the table `instance`:
 - `toggleRowSelected: Function(rowPath: String, ?set: Bool) => void`
   - Use this function to toggle a row's selected state.
   - Optionally pass `true` or `false` to set it to that state
-- `toggleRowSelectedAll: Function(?set: Bool) => void`
+- `toggleAllRowsSelected: Function(?set: Bool) => void`
   - Use this function to toggle all rows as select or not
   - Optionally pass `true` or `false` to set all rows to that state
 - `getToggleAllRowsSelectedProps: Function(props) => props`
@@ -55,6 +53,8 @@ The following additional properties are available on every **prepared** `row` ob
 
 - `isSelected: Bool`
   - Will be `true` if the row is currently selected
+- `isSomeSelected: Bool`
+  - Will be `true` if the row has subRows and at least one of them is currently selected
 - `toggleRowSelected: Function(?set)`
   - Use this function to toggle this row's selected state.
   - Optionally pass `true` or `false` to set it to that state

docs/api/useRowState.md

@@ -9,14 +9,12 @@
 
 The following options are supported via the main options object passed to `useTable(options)`
 
-- `state.rowState: Object<RowPathKey:Object<any, cellState: {columnId: Object}>>`
+- `initialState.rowState: Object<RowPathKey:Object<any, cellState: {columnId: Object}>>`
   - Optional
   - Defaults to `{}`
-  - If a row's path key (eg. a row path of `[1, 3, 2]` would have a path key of `1.3.2`) is found in this array, it will have the state of the value corresponding to that key.
+  - If a row's ID is found in this array, it will have the state of the value corresponding to that key.
   - Individual row states can contain anything, but they also contain a `cellState` key, which provides cell-level state based on column ID's to every
     **prepared** cell in the table.
-- `initialState.rowState`
-  - Identical to the `state.rowState` option above
 - `initialRowStateAccessor: Function`
   - Optional
   - This function may optionally return the initial state for a row.
@@ -44,7 +42,7 @@ The following values are provided to the table `instance`:
 The following additional properties are available on every **prepared** `row` object returned by the table instance.
 
 - `state: Object`
-  - This is the state object for each row, pre-mapped to the row from the table state's `rowState` object via `rowState[row.path.join('.')]`
+  - This is the state object for each row, pre-mapped to the row from the table state's `rowState` object via `rowState[row.id]`
   - May also contain a `cellState` key/value pair, which is used to provide individual cell states to this row's cells
 - `setState: Function(updater: Function | any)`
   - Use this function to programmatically update the state of a row.
@@ -55,7 +53,7 @@ The following additional properties are available on every **prepared** `row` ob
 The following additional properties are available on every `Cell` object returned in an array of `cells` on every row object.
 
 - `state: Object`
-  - This is the state object for each cell, pre-mapped to the cell from the table state's `rowState` object via `rowState[row.path.join('.')].cellState[columnId]`
+  - This is the state object for each cell, pre-mapped to the cell from the table state's `rowState` object via `rowState[row.id].cellState[columnId]`
 - `setState: Function(updater: Function | any)`
   - Use this function to programmatically update the state of a cell.
   - `updater` can be a function or value. If a `function` is passed, it will receive the current value and expect a new one to be returned.

docs/api/useSortBy.md

@@ -14,12 +14,10 @@
 
 The following options are supported via the main options object passed to `useTable(options)`
 
-- `state.sortBy: Array<Object<id: columnId, desc: Bool>>`
+- `initialState.sortBy: Array<Object<id: columnId, desc: Bool>>`
   - Must be **memoized**
   - An array of sorting objects. If there is more than one object in the array, multi-sorting will be enabled. Each sorting object should contain an `id` key with the corresponding column ID to sort by. An optional `desc` key may be set to true or false to indicated ascending or descending sorting for that column. This information is stored in state since the table is allowed to manipulate the filter through user interaction.
-- `initialState.sortBy`
-  - Identical to the `state.sortBy` option above
-- `manualSorting: Bool`
+- `manualSortBy: Bool`
   - Enables sorting detection functionality, but does not automatically perform row sorting. Turn this on if you wish to implement your own sorting outside of the table (eg. server-side or manual row grouping/nesting)
 - `disableSortBy: Bool`
   - Disables sorting for every column in the entire table.

docs/api/useTable.md

@@ -53,13 +53,11 @@ The following options are supported via the main options object passed to `useTa
   - Defaults to `(row) => row.subRows || []`
   - Use this function to change how React Table detects subrows. You could even use this function to generate sub rows if you want.
   - By default, it will attempt to return the `subRows` property on the row, or an empty array if that is not found.
-- `getRowId: Function(row, relativeIndex) => string`
-  - Use this function to change how React Table detects unique rows and also how it constructs each row's underlying `path` property.
+- `getRowId: Function(row, relativeIndex, ?parent) => string`
+  - Use this function to change how React Table detects unique rows and also how it constructs each row's underlying `id` property.
   - Optional
   - Must be **memoized**
-  - Defaults to `(row, relativeIndex) => relativeIndex`
-  - You may want to change this function if
-  - By default, it will use the `index` of the row within it's original array.
+  - Defaults to `(row, relativeIndex, parent) => parent ? [parent.id, relativeIndex].join('.') : relativeIndex`
 - `debug: Bool`
   - Optional
   - A flag to turn on debug mode.
@@ -95,6 +93,11 @@ The following options are supported on any column object you can pass to `column
   - Receives the table instance and cell model as props
   - Must return valid JSX
   - This function (or component) is primarily used for formatting the column value, eg. If your column accessor returns a date object, you can use a `Cell` function to format that date to a readable format.
+- `show: Bool`
+  - Optional
+  - Defaults to `undefined`
+  - If set to `true`, will take priority over any state in `hiddenColumns` and force this column to be visible at all times.
+  - If set to `false` will take priority over any state in `hiddenColumns` and force this column to be hidden at all times.
 - `width: Int`
   - Optional
   - Defaults to `150`
@@ -242,7 +245,12 @@ The following properties are available on every `Column` object returned by the
 The following additional properties are available on every `row` object returned by the table instance.
 
 - `cells: Array<Cell>`
-  - An array of `Cell` objects containing properties and functions specific to the row and column it belongs to.
+  - An array of visible `Cell` objects containing properties and functions specific to the row and column it belongs to.
+  - These cells are normally intended for display
+  - See [Cell Properties](#cell-properties) for more information
+- `allCells: Array<Cell>`
+  - An array of all `Cell` objects containing properties and functions specific to the row and column it belongs to.
+  - Not every cell contained here is guaranteed that it should be displayed and is made available here for convenience and advanced templating purposes.
   - See [Cell Properties](#cell-properties) for more information
 - `values: Object<columnId: any>`
   - A map of this row's **resolved** values by columnId, eg. `{ firstName: 'Tanner', lastName: 'Linsley' }`
@@ -255,9 +263,6 @@ The following additional properties are available on every `row` object returned
   - The index of the original row in the `data` array that was passed to `useTable`. If this row is a subRow, it is the original index within the parent row's subRows array
 - `original: Object`
   - The original row object from the `data` array that was used to materialize this row.
-- `path: Array<string>`
-  - This array is the sequential path of indices one could use to navigate to it, eg. a row path of `[3, 1, 0]` would mean that it is the **first** subRow of a parent that is the **second** subRow of a parent that is the **fourth** row in the original `data` array.
-  - This array is used with plugin hooks like `useExpanded` and `useGroupBy` to compute expanded states for individual rows.
 - `subRows: Array<Row>`
   - If subRows were detect on the original data object, this will be an array of those materialized row objects.
 - `state: Object`

examples/expanding/src/App.js

@@ -62,25 +62,22 @@ function Table({ columns: userColumns, data }) {
           ))}
         </thead>
         <tbody {...getTableBodyProps()}>
-          {rows.map(
-            (row, i) => {
-              prepareRow(row);
-              return (
-                <tr {...row.getRowProps()}>
-                  {row.cells.map(cell => {
-                    return (
-                      <td {...cell.getCellProps()}>{cell.render('Cell')}</td>
-                    )
-                  })}
-                </tr>
-              )}
-          )}
+          {rows.map((row, i) => {
+            prepareRow(row)
+            return (
+              <tr {...row.getRowProps()}>
+                {row.cells.map(cell => {
+                  return <td {...cell.getCellProps()}>{cell.render('Cell')}</td>
+                })}
+              </tr>
+            )
+          })}
         </tbody>
       </table>
       <br />
       <div>Showing the first 20 results of {rows.length} rows</div>
       <pre>
-        <code>{JSON.stringify({ expanded }, null, 2)}</code>
+        <code>{JSON.stringify({ expanded: expanded }, null, 2)}</code>
       </pre>
     </>
   )

examples/grouping-column/.babelrc

@@ -0,0 +1,4 @@
+{
+  "presets": ["react-app"],
+  "plugins": ["styled-components"]
+}

examples/grouping-column/.env

@@ -0,0 +1 @@
+SKIP_PREFLIGHT_CHECK=true

examples/grouping-column/.eslintrc

@@ -0,0 +1,7 @@
+{
+  "extends": ["react-app", "prettier"],
+  "rules": {
+    // "eqeqeq": 0,
+    // "jsx-a11y/anchor-is-valid": 0
+  }
+}

examples/grouping-column/.gitignore

@@ -0,0 +1,23 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*

examples/grouping-column/.rescriptsrc.js

@@ -0,0 +1,29 @@
+const path = require('path')
+const resolveFrom = require('resolve-from')
+
+const fixLinkedDependencies = config => {
+  config.resolve = {
+    ...config.resolve,
+    alias: {
+      ...config.resolve.alias,
+      react$: resolveFrom(path.resolve('node_modules'), 'react'),
+      'react-dom$': resolveFrom(path.resolve('node_modules'), 'react-dom'),
+    },
+  }
+  return config
+}
+
+const includeSrcDirectory = config => {
+  config.resolve = {
+    ...config.resolve,
+    modules: [path.resolve('src'), ...config.resolve.modules],
+  }
+  return config
+}
+
+module.exports = [
+  ['use-babel-config', '.babelrc'],
+  ['use-eslint-config', '.eslintrc'],
+  fixLinkedDependencies,
+  // includeSrcDirectory,
+]

examples/grouping-column/README.md

@@ -0,0 +1,6 @@
+This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app) and Rescripts.
+
+You can:
+
+- [Open this example in a new CodeSandbox](https://codesandbox.io/s/github/tannerlinsley/react-table/tree/master/examples/grouping-column)
+- `yarn` and `yarn start` to run and edit the example

examples/grouping-column/package.json

@@ -0,0 +1,35 @@
+{
+  "private": true,
+  "scripts": {
+    "start": "rescripts start",
+    "build": "rescripts build",
+    "test": "rescripts test",
+    "eject": "rescripts eject"
+  },
+  "dependencies": {
+    "namor": "^1.1.2",
+    "react": "^16.8.6",
+    "react-dom": "^16.8.6",
+    "react-scripts": "3.0.1",
+    "react-table": "latest",
+    "styled-components": "^4.3.2"
+  },
+  "devDependencies": {
+    "@rescripts/cli": "^0.0.11",
+    "@rescripts/rescript-use-babel-config": "^0.0.8",
+    "@rescripts/rescript-use-eslint-config": "^0.0.9",
+    "babel-eslint": "10.0.1"
+  },
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  }
+}

examples/grouping-column/public/index.html

@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="theme-color" content="#000000" />
+    <!--
+      manifest.json provides metadata used when your web app is installed on a
+      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
+    <!--
+      Notice the use of %PUBLIC_URL% in the tags above.
+      It will be replaced with the URL of the `public` folder during the build.
+      Only files inside the `public` folder can be referenced from the HTML.
+
+      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
+      work correctly both with client-side routing and a non-root public URL.
+      Learn how to configure a non-root public URL by running `npm run build`.
+    -->
+    <title>React App</title>
+  </head>
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+    <div id="root"></div>
+    <!--
+      This HTML file is a template.
+      If you open it directly in the browser, you will see an empty page.
+
+      You can add webfonts, meta tags, or analytics to this file.
+      The build step will place the bundled scripts into the <body> tag.
+
+      To begin the development, run `npm start` or `yarn start`.
+      To create a production bundle, use `npm run build` or `yarn build`.
+    -->
+  </body>
+</html>

examples/grouping-column/public/manifest.json

@@ -0,0 +1,15 @@
+{
+  "short_name": "React App",
+  "name": "Create React App Sample",
+  "icons": [
+    {
+      "src": "favicon.ico",
+      "sizes": "64x64 32x32 24x24 16x16",
+      "type": "image/x-icon"
+    }
+  ],
+  "start_url": ".",
+  "display": "standalone",
+  "theme_color": "#000000",
+  "background_color": "#ffffff"
+}

examples/grouping-column/src/App.js

@@ -0,0 +1,305 @@
+import React from 'react'
+import styled from 'styled-components'
+import { useTable, useGroupBy, useExpanded } from 'react-table'
+
+import makeData from './makeData'
+
+const Styles = styled.div`
+  padding: 1rem;
+
+  table {
+    border-spacing: 0;
+    border: 1px solid black;
+
+    tr {
+      :last-child {
+        td {
+          border-bottom: 0;
+        }
+      }
+    }
+
+    th,
+    td {
+      margin: 0;
+      padding: 0.5rem;
+      border-bottom: 1px solid black;
+      border-right: 1px solid black;
+
+      :last-child {
+        border-right: 0;
+      }
+    }
+  }
+`
+
+function Table({ columns, data }) {
+  const {
+    getTableProps,
+    getTableBodyProps,
+    headerGroups,
+    rows,
+    prepareRow,
+    state: { groupBy, expanded },
+  } = useTable(
+    {
+      columns,
+      data,
+    },
+    useGroupBy,
+    useExpanded,
+    // Our custom plugin to add the expander column
+    hooks => {
+      hooks.flatColumns.push((columns, instance) => {
+        if (!instance.state.groupBy.length) {
+          return columns
+        }
+
+        return [
+          {
+            id: 'expander', // Make sure it has an ID
+            // Build our expander column
+            Header: ({ flatColumns, state: { groupBy } }) => {
+              return groupBy.map(columnId => {
+                const column = flatColumns.find(d => d.id === columnId)
+
+                return (
+                  <span {...column.getHeaderProps()}>
+                    {column.canGroupBy ? (
+                      // If the column can be grouped, let's add a toggle
+                      <span {...column.getGroupByToggleProps()}>
+                        {column.isGrouped ? '🛑 ' : '👊 '}
+                      </span>
+                    ) : null}
+                    {column.render('Header')}{' '}
+                  </span>
+                )
+              })
+            },
+            Cell: ({ row }) => {
+              if (row.canExpand) {
+                const groupedCell = row.allCells.find(d => d.isGrouped)
+
+                return (
+                  <span
+                    {...row.getExpandedToggleProps({
+                      style: {
+                        // We can even use the row.depth property
+                        // and paddingLeft to indicate the depth
+                        // of the row
+                        paddingLeft: `${row.depth * 2}rem`,
+                      },
+                    })}
+                  >
+                    {row.isExpanded ? '👇' : '👉'} {groupedCell.render('Cell')}{' '}
+                    ({row.subRows.length})
+                  </span>
+                )
+              }
+
+              return null
+            },
+          },
+          ...columns.map(d => ({ ...d, isVisible: !d.isGrouped })),
+        ]
+      })
+    }
+  )
+
+  // We don't want to render all of the rows for this example, so cap
+  // it at 20 for this use case
+  const firstPageRows = rows.slice(0, 100)
+
+  return (
+    <>
+      <pre>
+        <code>{JSON.stringify({ groupBy, expanded: expanded }, null, 2)}</code>
+      </pre>
+      <Legend />
+      <table {...getTableProps()}>
+        <thead>
+          {headerGroups.map(headerGroup => (
+            <tr {...headerGroup.getHeaderGroupProps()}>
+              {headerGroup.headers.map(column => (
+                <th {...column.getHeaderProps()}>
+                  {column.canGroupBy ? (
+                    // If the column can be grouped, let's add a toggle
+                    <span {...column.getGroupByToggleProps()}>
+                      {column.isGrouped ? '🛑 ' : '👊 '}
+                    </span>
+                  ) : null}
+                  {column.render('Header')}
+                </th>
+              ))}
+            </tr>
+          ))}
+        </thead>
+        <tbody {...getTableBodyProps()}>
+          {firstPageRows.map((row, i) => {
+            prepareRow(row)
+            return (
+              <tr {...row.getRowProps()}>
+                {row.cells.map(cell => {
+                  return (
+                    <td
+                      // For educational purposes, let's color the
+                      // cell depending on what type it is given
+                      // from the useGroupBy hook
+                      {...cell.getCellProps()}
+                      style={{
+                        background: cell.isGrouped
+                          ? '#0aff0082'
+                          : cell.isAggregated
+                          ? '#ffa50078'
+                          : cell.isRepeatedValue
+                          ? '#ff000042'
+                          : 'white',
+                      }}
+                    >
+                      {cell.isAggregated
+                        ? // If the cell is aggregated, use the Aggregated
+                          // renderer for cell
+                          cell.render('Aggregated')
+                        : cell.isRepeatedValue
+                        ? null // For cells with repeated values, render null
+                        : // Otherwise, just render the regular cell
+                          cell.render('Cell')}
+                    </td>
+                  )
+                })}
+              </tr>
+            )
+          })}
+        </tbody>
+      </table>
+      <br />
+      <div>Showing the first 100 results of {rows.length} rows</div>
+    </>
+  )
+}
+
+function Legend() {
+  return (
+    <div
+      style={{
+        padding: '0.5rem 0',
+      }}
+    >
+      <span
+        style={{
+          display: 'inline-block',
+          background: '#0aff0082',
+          padding: '0.5rem',
+        }}
+      >
+        Grouped
+      </span>{' '}
+      <span
+        style={{
+          display: 'inline-block',
+          background: '#ffa50078',
+          padding: '0.5rem',
+        }}
+      >
+        Aggregated
+      </span>{' '}
+      <span
+        style={{
+          display: 'inline-block',
+          background: '#ff000042',
+          padding: '0.5rem',
+        }}
+      >
+        Repeated Value
+      </span>
+    </div>
+  )
+}
+
+// This is a custom aggregator that
+// takes in an array of values and
+// returns the rounded median
+function roundedMedian(values) {
+  let min = values[0] || ''
+  let max = values[0] || ''
+
+  values.forEach(value => {
+    min = Math.min(min, value)
+    max = Math.max(max, value)
+  })
+
+  return Math.round((min + max) / 2)
+}
+
+function App() {
+  const columns = React.useMemo(
+    () => [
+      {
+        Header: 'Name',
+        columns: [
+          {
+            Header: 'First Name',
+            accessor: 'firstName',
+            // Use a two-stage aggregator here to first
+            // count the total rows being aggregated,
+            // then sum any of those counts if they are
+            // aggregated further
+            aggregate: ['sum', 'count'],
+            Aggregated: ({ cell: { value } }) => `${value} Names`,
+          },
+          {
+            Header: 'Last Name',
+            accessor: 'lastName',
+            // Use another two-stage aggregator here to
+            // first count the UNIQUE values from the rows
+            // being aggregated, then sum those counts if
+            // they are aggregated further
+            aggregate: ['sum', 'uniqueCount'],
+            Aggregated: ({ cell: { value } }) => `${value} Unique Names`,
+          },
+        ],
+      },
+      {
+        Header: 'Info',
+        columns: [
+          {
+            Header: 'Age',
+            accessor: 'age',
+            // Aggregate the average age of visitors
+            aggregate: 'average',
+            Aggregated: ({ cell: { value } }) => `${value} (avg)`,
+          },
+          {
+            Header: 'Visits',
+            accessor: 'visits',
+            // Aggregate the sum of all visits
+            aggregate: 'sum',
+            Aggregated: ({ cell: { value } }) => `${value} (total)`,
+          },
+          {
+            Header: 'Status',
+            accessor: 'status',
+          },
+          {
+            Header: 'Profile Progress',
+            accessor: 'progress',
+            // Use our custom roundedMedian aggregator
+            aggregate: roundedMedian,
+            Aggregated: ({ cell: { value } }) => `${value} (med)`,
+          },
+        ],
+      },
+    ],
+    []
+  )
+
+  const data = React.useMemo(() => makeData(100000), [])
+
+  return (
+    <Styles>
+      <Table columns={columns} data={data} />
+    </Styles>
+  )
+}
+
+export default App

examples/grouping-column/src/App.test.js

@@ -0,0 +1,9 @@
+import React from 'react'
+import ReactDOM from 'react-dom'
+import App from './App'
+
+it('renders without crashing', () => {
+  const div = document.createElement('div')
+  ReactDOM.render(<App />, div)
+  ReactDOM.unmountComponentAtNode(div)
+})

examples/grouping-column/src/index.css

@@ -0,0 +1,13 @@
+body {
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+    sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+code {
+  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
+    monospace;
+}

examples/grouping-column/src/index.js

@@ -0,0 +1,6 @@
+import React from 'react'
+import ReactDOM from 'react-dom'
+import './index.css'
+import App from './App'
+
+ReactDOM.render(<App />, document.getElementById('root'))

examples/grouping-column/src/makeData.js

@@ -0,0 +1,40 @@
+import namor from 'namor'
+
+const range = len => {
+  const arr = []
+  for (let i = 0; i < len; i++) {
+    arr.push(i)
+  }
+  return arr
+}
+
+const newPerson = () => {
+  const statusChance = Math.random()
+  return {
+    firstName: namor.generate({ words: 1, numbers: 0 }),
+    lastName: namor.generate({ words: 1, numbers: 0 }),
+    age: Math.floor(Math.random() * 30),
+    visits: Math.floor(Math.random() * 100),
+    progress: Math.floor(Math.random() * 100),
+    status:
+      statusChance > 0.66
+        ? 'relationship'
+        : statusChance > 0.33
+        ? 'complicated'
+        : 'single',
+  }
+}
+
+export default function makeData(...lens) {
+  const makeDataLevel = (depth = 0) => {
+    const len = lens[depth]
+    return range(len).map(d => {
+      return {
+        ...newPerson(),
+        subRows: lens[depth + 1] ? makeDataLevel(depth + 1) : undefined,
+      }
+    })
+  }
+
+  return makeDataLevel()
+}

examples/kitchen-sink-controlled/src/App.js

@@ -282,14 +282,7 @@ function Table({ columns, data, updateMyData, skipPageReset }) {
     nextPage,
     previousPage,
     setPageSize,
-    state: {
-      pageIndex,
-      pageSize,
-      groupBy,
-      expanded,
-      filters,
-      selectedRowPaths,
-    },
+    state: { pageIndex, pageSize, groupBy, expanded, filters, selectedRowIds },
   } = useTable(
     {
       columns,
@@ -313,7 +306,32 @@ function Table({ columns, data, updateMyData, skipPageReset }) {
     useSortBy,
     useExpanded,
     usePagination,
-    useRowSelect
+    useRowSelect,
+    hooks => {
+      hooks.flatColumns.push(columns => [
+        {
+          id: 'selection',
+          // Make this column a groupByBoundary. This ensures that groupBy columns
+          // are placed after it
+          groupByBoundary: true,
+          // The header can use the table's getToggleAllRowsSelectedProps method
+          // to render a checkbox
+          Header: ({ getToggleAllRowsSelectedProps }) => (
+            <div>
+              <input type="checkbox" {...getToggleAllRowsSelectedProps()} />
+            </div>
+          ),
+          // The cell can use the individual row's getToggleRowSelectedProps method
+          // to the render a checkbox
+          Cell: ({ row }) => (
+            <div>
+              <input type="checkbox" {...row.getToggleRowSelectedProps()} />
+            </div>
+          ),
+        },
+        ...columns,
+      ])
+    }
   )
 
   // Render the UI for your table
@@ -440,9 +458,9 @@ function Table({ columns, data, updateMyData, skipPageReset }) {
               canNextPage,
               canPreviousPage,
               groupBy,
-              expanded,
+              expanded: expanded,
               filters,
-              selectedRowPaths: [...selectedRowPaths.values()],
+              selectedRowIds: selectedRowIds,
             },
             null,
             2
@@ -485,26 +503,6 @@ function roundedMedian(values) {
 function App() {
   const columns = React.useMemo(
     () => [
-      {
-        id: 'selection',
-        // Make this column a groupByBoundary. This ensures that groupBy columns
-        // are placed after it
-        groupByBoundary: true,
-        // The header can use the table's getToggleAllRowsSelectedProps method
-        // to render a checkbox
-        Header: ({ getToggleAllRowsSelectedProps }) => (
-          <div>
-            <input type="checkbox" {...getToggleAllRowsSelectedProps()} />
-          </div>
-        ),
-        // The cell can use the individual row's getToggleRowSelectedProps method
-        // to the render a checkbox
-        Cell: ({ row }) => (
-          <div>
-            <input type="checkbox" {...row.getToggleRowSelectedProps()} />
-          </div>
-        ),
-      },
       {
         Header: 'Name',
         columns: [

examples/kitchen-sink/src/App.js

@@ -282,14 +282,7 @@ function Table({ columns, data, updateMyData, skipReset }) {
     nextPage,
     previousPage,
     setPageSize,
-    state: {
-      pageIndex,
-      pageSize,
-      groupBy,
-      expanded,
-      filters,
-      selectedRowPaths,
-    },
+    state: { pageIndex, pageSize, groupBy, expanded, filters, selectedRowIds },
   } = useTable(
     {
       columns,
@@ -312,7 +305,35 @@ function Table({ columns, data, updateMyData, skipReset }) {
     useSortBy,
     useExpanded,
     usePagination,
-    useRowSelect
+    useRowSelect,
+    // Here we will use a plugin to add our selection column
+    hooks => {
+      hooks.flatColumns.push(columns => {
+        return [
+          {
+            id: 'selection',
+            // Make this column a groupByBoundary. This ensures that groupBy columns
+            // are placed after it
+            groupByBoundary: true,
+            // The header can use the table's getToggleAllRowsSelectedProps method
+            // to render a checkbox
+            Header: ({ getToggleAllRowsSelectedProps }) => (
+              <div>
+                <IndeterminateCheckbox {...getToggleAllRowsSelectedProps()} />
+              </div>
+            ),
+            // The cell can use the individual row's getToggleRowSelectedProps method
+            // to the render a checkbox
+            Cell: ({ row }) => (
+              <div>
+                <IndeterminateCheckbox {...row.getToggleRowSelectedProps()} />
+              </div>
+            ),
+          },
+          ...columns,
+        ]
+      })
+    }
   )
 
   // Render the UI for your table
@@ -439,9 +460,9 @@ function Table({ columns, data, updateMyData, skipReset }) {
               canNextPage,
               canPreviousPage,
               groupBy,
-              expanded,
+              expanded: expanded,
               filters,
-              selectedRowPaths: [...selectedRowPaths.values()],
+              selectedRowIds: selectedRowIds,
             },
             null,
             2
@@ -481,29 +502,26 @@ function roundedMedian(values) {
   return Math.round((min + max) / 2)
 }
 
+const IndeterminateCheckbox = React.forwardRef(
+  ({ indeterminate, ...rest }, ref) => {
+    const defaultRef = React.useRef()
+    const resolvedRef = ref || defaultRef
+
+    React.useEffect(() => {
+      resolvedRef.current.indeterminate = indeterminate
+    }, [resolvedRef, indeterminate])
+
+    return (
+      <>
+        <input type="checkbox" ref={resolvedRef} {...rest} />
+      </>
+    )
+  }
+)
+
 function App() {
   const columns = React.useMemo(
     () => [
-      {
-        id: 'selection',
-        // Make this column a groupByBoundary. This ensures that groupBy columns
-        // are placed after it
-        groupByBoundary: true,
-        // The header can use the table's getToggleAllRowsSelectedProps method
-        // to render a checkbox
-        Header: ({ getToggleAllRowsSelectedProps }) => (
-          <div>
-            <input type="checkbox" {...getToggleAllRowsSelectedProps()} />
-          </div>
-        ),
-        // The cell can use the individual row's getToggleRowSelectedProps method
-        // to the render a checkbox
-        Cell: ({ row }) => (
-          <div>
-            <input type="checkbox" {...row.getToggleRowSelectedProps()} />
-          </div>
-        ),
-      },
       {
         Header: 'Name',
         columns: [

examples/row-selection/src/App.js

@@ -33,6 +33,23 @@ const Styles = styled.div`
   }
 `
 
+const IndeterminateCheckbox = React.forwardRef(
+  ({ indeterminate, ...rest }, ref) => {
+    const defaultRef = React.useRef()
+    const resolvedRef = ref || defaultRef
+
+    React.useEffect(() => {
+      resolvedRef.current.indeterminate = indeterminate
+    }, [resolvedRef, indeterminate])
+
+    return (
+      <>
+        <input type="checkbox" ref={resolvedRef} {...rest} />
+      </>
+    )
+  }
+)
+
 function Table({ columns, data }) {
   // Use the state and functions returned from useTable to build your UI
   const {
@@ -42,13 +59,36 @@ function Table({ columns, data }) {
     rows,
     prepareRow,
     selectedFlatRows,
-    state: { selectedRowPaths },
+    state: { selectedRowIds },
   } = useTable(
     {
       columns,
       data,
     },
-    useRowSelect
+    useRowSelect,
+    hooks => {
+      hooks.flatColumns.push(columns => [
+        // Let's make a column for selection
+        {
+          id: 'selection',
+          // The header can use the table's getToggleAllRowsSelectedProps method
+          // to render a checkbox
+          Header: ({ getToggleAllRowsSelectedProps }) => (
+            <div>
+              <IndeterminateCheckbox {...getToggleAllRowsSelectedProps()} />
+            </div>
+          ),
+          // The cell can use the individual row's getToggleRowSelectedProps method
+          // to the render a checkbox
+          Cell: ({ row }) => (
+            <div>
+              <IndeterminateCheckbox {...row.getToggleRowSelectedProps()} />
+            </div>
+          ),
+        },
+        ...columns,
+      ])
+    }
   )
 
   // Render the UI for your table
@@ -77,12 +117,12 @@ function Table({ columns, data }) {
           })}
         </tbody>
       </table>
-      <p>Selected Rows: {selectedRowPaths.size}</p>
+      <p>Selected Rows: {Object.keys(selectedRowIds).length}</p>
       <pre>
         <code>
           {JSON.stringify(
             {
-              selectedRowPaths: [...selectedRowPaths.values()],
+              selectedRowIds: selectedRowIds,
               'selectedFlatRows[].original': selectedFlatRows.map(
                 d => d.original
               ),
@@ -99,24 +139,6 @@ function Table({ columns, data }) {
 function App() {
   const columns = React.useMemo(
     () => [
-      // Let's make a column for selection
-      {
-        id: 'selection',
-        // The header can use the table's getToggleAllRowsSelectedProps method
-        // to render a checkbox
-        Header: ({ getToggleAllRowsSelectedProps }) => (
-          <div>
-            <input type="checkbox" {...getToggleAllRowsSelectedProps()} />
-          </div>
-        ),
-        // The cell can use the individual row's getToggleRowSelectedProps method
-        // to the render a checkbox
-        Cell: ({ row }) => (
-          <div>
-            <input type="checkbox" {...row.getToggleRowSelectedProps()} />
-          </div>
-        ),
-      },
       {
         Header: 'Name',
         columns: [
@@ -155,7 +177,7 @@ function App() {
     []
   )
 
-  const data = React.useMemo(() => makeData(10), [])
+  const data = React.useMemo(() => makeData(10, 3), [])
 
   return (
     <Styles>

examples/sub-components/src/App.js

@@ -57,7 +57,7 @@ function Table({ columns: userColumns, data, renderRowSubComponent }) {
   return (
     <>
       <pre>
-        <code>{JSON.stringify({ expanded }, null, 2)}</code>
+        <code>{JSON.stringify({ expanded: expanded }, null, 2)}</code>
       </pre>
       <table {...getTableProps()}>
         <thead>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-table",
-  "version": "7.0.0-rc.8",
+  "version": "7.0.0-rc.10",
   "description": "Hooks for building lightweight, fast and extendable datagrids for React",
   "license": "MIT",
   "homepage": "https://github.com/tannerlinsley/react-table#readme",

sizes-cjs.json

@@ -1,4 +1,44 @@
 [
+  {
+    "timestamp": 1576222078852,
+    "files": [
+      {
+        "filename": "index.js",
+        "size": 22042,
+        "delta": -647
+      }
+    ]
+  },
+  {
+    "timestamp": 1576165979638,
+    "files": [
+      {
+        "filename": "index.js",
+        "size": 22689,
+        "delta": 135
+      }
+    ]
+  },
+  {
+    "timestamp": 1576044489324,
+    "files": [
+      {
+        "filename": "index.js",
+        "size": 22554,
+        "delta": -79
+      }
+    ]
+  },
+  {
+    "timestamp": 1576020969676,
+    "files": [
+      {
+        "filename": "index.js",
+        "size": 22633,
+        "delta": -10
+      }
+    ]
+  },
   {
     "timestamp": 1576007021431,
     "files": [

sizes-es.json

@@ -1,4 +1,44 @@
 [
+  {
+    "timestamp": 1576222088784,
+    "files": [
+      {
+        "filename": "index.es.js",
+        "size": 21847,
+        "delta": -668
+      }
+    ]
+  },
+  {
+    "timestamp": 1576165986389,
+    "files": [
+      {
+        "filename": "index.es.js",
+        "size": 22515,
+        "delta": 140
+      }
+    ]
+  },
+  {
+    "timestamp": 1576044496748,
+    "files": [
+      {
+        "filename": "index.es.js",
+        "size": 22375,
+        "delta": -76
+      }
+    ]
+  },
+  {
+    "timestamp": 1576020979047,
+    "files": [
+      {
+        "filename": "index.es.js",
+        "size": 22451,
+        "delta": -10
+      }
+    ]
+  },
   {
     "timestamp": 1576007027792,
     "files": [

src/hooks/useColumnVisibility.js

@@ -117,8 +117,16 @@ function useInstanceBeforeDimensions(instance) {
     state: { hiddenColumns },
   } = instance
 
+  const isMountedRef = React.useRef(false)
+
+  if (!isMountedRef.current) {
+  }
+
   const handleColumn = (column, parentVisible) => {
-    column.isVisible = parentVisible && !hiddenColumns.includes(column.id)
+    column.isVisible =
+      typeof column.isVisible !== 'undefined'
+        ? column.isVisible
+        : parentVisible && !hiddenColumns.includes(column.id)
 
     let totalVisibleHeaderCount = 0
 

src/hooks/useTable.js

@@ -6,7 +6,7 @@ import {
   reduceHooks,
   loopHooks,
   makePropGetter,
-  flexRender,
+  makeRenderer,
   decorateColumnTree,
   makeHeaderGroups,
   flattenBy,
@@ -18,13 +18,12 @@ import makeDefaultPluginHooks from '../makeDefaultPluginHooks'
 
 import { useColumnVisibility } from './useColumnVisibility'
 
-let renderErr = 'Renderer Error'
-
 const defaultInitialState = {}
 const defaultColumnInstance = {}
 const defaultReducer = (state, action, prevState) => state
 const defaultGetSubRows = (row, index) => row.subRows || []
-const defaultGetRowId = (row, index) => index
+const defaultGetRowId = (row, index, parent) =>
+  `${parent ? [parent.id, index].join('.') : index}`
 const defaultUseControlledState = d => d
 
 function applyDefaults(props) {
@@ -122,11 +121,11 @@ export const useTable = (props, ...plugins) => {
           ? getStateReducer()
           : [getStateReducer()]),
       ].reduce(
-        (s, handler) => handler(s, action, state, instanceRef) || s,
+        (s, handler) => handler(s, action, state, getInstance()) || s,
         state
       )
     },
-    [getStateReducers, getStateReducer]
+    [getStateReducers, getStateReducer, getInstance]
   )
 
   // Start the reducer
@@ -165,39 +164,103 @@ export const useTable = (props, ...plugins) => {
       getInstance,
       userColumns,
       // eslint-disable-next-line react-hooks/exhaustive-deps
-      ...getColumnsDepsHooks(getInstance()),
+      ...reduceHooks(getColumnsDepsHooks(), [], getInstance()),
     ]
   )
 
   getInstance().columns = columns
 
+  // Get the flat list of all columns and allow hooks to decorate
+  // those columns (and trigger this memoization via deps)
+  let flatColumns = React.useMemo(() => flattenBy(columns, 'columns'), [
+    columns,
+  ])
+
+  getInstance().flatColumns = flatColumns
+
+  // Access the row model
+  const [rows, flatRows] = React.useMemo(() => {
+    let flatRows = []
+
+    // Access the row's data
+    const accessRow = (originalRow, i, depth = 0, parent) => {
+      // Keep the original reference around
+      const original = originalRow
+
+      const id = getRowId(originalRow, i, parent)
+
+      const row = {
+        id,
+        original,
+        index: i,
+        depth,
+        cells: [{}], // This is a dummy cell
+      }
+
+      flatRows.push(row)
+
+      // Process any subRows
+      let subRows = getSubRows(originalRow, i)
+
+      if (subRows) {
+        row.subRows = subRows.map((d, i) => accessRow(d, i, depth + 1, row))
+      }
+
+      // Override common array functions (and the dummy cell's getCellProps function)
+      // to show an error if it is accessed without calling prepareRow
+      const unpreparedAccessWarning = () => {
+        throw new Error(
+          'React-Table: You have not called prepareRow(row) one or more rows you are attempting to render.'
+        )
+      }
+      row.cells.map = unpreparedAccessWarning
+      row.cells.filter = unpreparedAccessWarning
+      row.cells.forEach = unpreparedAccessWarning
+      row.cells[0].getCellProps = unpreparedAccessWarning
+
+      // Create the cells and values
+      row.values = {}
+      flatColumns.forEach(({ id, accessor }) => {
+        row.values[id] = accessor
+          ? accessor(originalRow, i, { subRows, depth, data })
+          : undefined
+      })
+
+      return row
+    }
+
+    // Use the resolved data
+    const accessedData = data.map((d, i) => accessRow(d, i))
+
+    return [accessedData, flatRows]
+  }, [data, flatColumns, getRowId, getSubRows])
+
+  getInstance().rows = rows
+  getInstance().flatRows = flatRows
+
   // Snapshot hook and disallow more from being added
-  const getFlatColumns = useConsumeHookGetter(
+  const flatColumnsHooks = useConsumeHookGetter(
     getInstance().hooks,
     'flatColumns'
   )
 
   // Snapshot hook and disallow more from being added
-  const getFlatColumnsDeps = useConsumeHookGetter(
+  const flatColumnsDepsHooks = useConsumeHookGetter(
     getInstance().hooks,
     'flatColumnsDeps'
   )
 
-  // Get the flat list of all columns and allow hooks to decorate
+  // Get the flat list of all columns AFTER the rows
+  // have been access, and allow hooks to decorate
   // those columns (and trigger this memoization via deps)
-  let flatColumns = React.useMemo(
-    () =>
-      reduceHooks(
-        getFlatColumns(),
-        flattenBy(columns, 'columns'),
-        getInstance()
-      ),
+  flatColumns = React.useMemo(
+    () => reduceHooks(flatColumnsHooks(), flatColumns, getInstance()),
     [
-      columns,
-      getFlatColumns,
+      flatColumns,
+      flatColumnsHooks,
       getInstance,
       // eslint-disable-next-line react-hooks/exhaustive-deps
-      getFlatColumnsDeps(getInstance()),
+      ...reduceHooks(flatColumnsDepsHooks(), [], getInstance()),
     ]
   )
 
@@ -229,7 +292,7 @@ export const useTable = (props, ...plugins) => {
       getHeaderGroups,
       getInstance,
       // eslint-disable-next-line react-hooks/exhaustive-deps
-      ...getHeaderGroupsDeps(getInstance()),
+      ...reduceHooks(getHeaderGroupsDeps(), [], getInstance()),
     ]
   )
 
@@ -242,69 +305,6 @@ export const useTable = (props, ...plugins) => {
 
   getInstance().headers = headers
 
-  // Access the row model
-  const [rows, flatRows] = React.useMemo(() => {
-    let flatRows = []
-
-    // Access the row's data
-    const accessRow = (originalRow, i, depth = 0, parentPath = []) => {
-      // Keep the original reference around
-      const original = originalRow
-
-      const rowId = getRowId(originalRow, i)
-
-      // Make the new path for the row
-      const path = [...parentPath, rowId]
-
-      const row = {
-        original,
-        index: i,
-        path, // used to create a key for each row even if not nested
-        depth,
-        cells: [{}], // This is a dummy cell
-      }
-
-      flatRows.push(row)
-
-      // Process any subRows
-      let subRows = getSubRows(originalRow, i)
-
-      if (subRows) {
-        row.subRows = subRows.map((d, i) => accessRow(d, i, depth + 1, path))
-      }
-
-      // Override common array functions (and the dummy cell's getCellProps function)
-      // to show an error if it is accessed without calling prepareRow
-      const unpreparedAccessWarning = () => {
-        throw new Error(
-          'React-Table: You have not called prepareRow(row) one or more rows you are attempting to render.'
-        )
-      }
-      row.cells.map = unpreparedAccessWarning
-      row.cells.filter = unpreparedAccessWarning
-      row.cells.forEach = unpreparedAccessWarning
-      row.cells[0].getCellProps = unpreparedAccessWarning
-
-      // Create the cells and values
-      row.values = {}
-      flatColumns.forEach(column => {
-        row.values[column.id] = column.accessor
-          ? column.accessor(originalRow, i, { subRows, depth, data })
-          : undefined
-      })
-
-      return row
-    }
-
-    // Use the resolved data
-    const accessedData = data.map((d, i) => accessRow(d, i))
-
-    return [accessedData, flatRows]
-  }, [data, flatColumns, getRowId, getSubRows])
-
-  getInstance().rows = rows
-  getInstance().flatRows = flatRows
-
   // Provide a flat header list for utilities
   getInstance().flatHeaders = headerGroups.reduce(
     (all, headerGroup) => [...all, ...headerGroup.headers],
@@ -344,36 +344,26 @@ export const useTable = (props, ...plugins) => {
 
   // Each materialized header needs to be assigned a render function and other
   // prop getter properties here.
-  getInstance().flatHeaders.forEach(column => {
-    // Give columns/headers rendering power
-    column.render = (type, userProps = {}) => {
-      const Comp = typeof type === 'string' ? column[type] : type
+  ;[...getInstance().flatHeaders, ...getInstance().flatColumns].forEach(
+    column => {
+      // Give columns/headers rendering power
+      column.render = makeRenderer(getInstance(), column)
 
-      if (typeof Comp === 'undefined') {
-        throw new Error(renderErr)
-      }
+      // Give columns/headers a default getHeaderProps
+      column.getHeaderProps = makePropGetter(
+        getHeaderPropsHooks(),
+        getInstance(),
+        column
+      )
 
-      return flexRender(Comp, {
-        ...getInstance(),
-        column,
-        ...userProps,
-      })
+      // Give columns/headers a default getFooterProps
+      column.getFooterProps = makePropGetter(
+        getFooterPropsHooks(),
+        getInstance(),
+        column
+      )
     }
-
-    // Give columns/headers a default getHeaderProps
-    column.getHeaderProps = makePropGetter(
-      getHeaderPropsHooks(),
-      getInstance(),
-      column
-    )
-
-    // Give columns/headers a default getFooterProps
-    column.getFooterProps = makePropGetter(
-      getFooterPropsHooks(),
-      getInstance(),
-      column
-    )
-  })
+  )
 
   // Snapshot hook and disallow more from being added
   const getHeaderGroupPropsHooks = useConsumeHookGetter(
@@ -461,51 +451,50 @@ export const useTable = (props, ...plugins) => {
     'getCellProps'
   )
 
+  // Snapshot hook and disallow more from being added
+  const cellsHooks = useConsumeHookGetter(getInstance().hooks, 'cells')
+
   getInstance().prepareRow = React.useCallback(
     row => {
       row.getRowProps = makePropGetter(getRowPropsHooks(), getInstance(), row)
 
       // Build the visible cells for each row
-      row.cells = getInstance()
-        .flatColumns.filter(d => d.isVisible)
-        .map(column => {
-          const cell = {
-            column,
-            row,
-            value: row.values[column.id],
-          }
+      row.allCells = flatColumns.map(column => {
+        const cell = {
+          column,
+          row,
+          value: row.values[column.id],
+        }
 
-          // Give each cell a getCellProps base
-          cell.getCellProps = makePropGetter(
-            getCellPropsHooks(),
-            getInstance(),
-            cell
-          )
+        // Give each cell a getCellProps base
+        cell.getCellProps = makePropGetter(
+          getCellPropsHooks(),
+          getInstance(),
+          cell
+        )
 
-          // Give each cell a renderer function (supports multiple renderers)
-          cell.render = (type, userProps = {}) => {
-            const Comp = typeof type === 'string' ? column[type] : type
-
-            if (typeof Comp === 'undefined') {
-              throw new Error(renderErr)
-            }
-
-            return flexRender(Comp, {
-              ...getInstance(),
-              column,
-              row,
-              cell,
-              ...userProps,
-            })
-          }
-
-          return cell
+        // Give each cell a renderer function (supports multiple renderers)
+        cell.render = makeRenderer(getInstance(), column, {
+          row,
+          cell,
         })
 
+        return cell
+      })
+
+      row.cells = reduceHooks(cellsHooks(), row.allCells, getInstance())
+
       // need to apply any row specific hooks (useExpanded requires this)
       loopHooks(getPrepareRowHooks(), row, getInstance())
     },
-    [getCellPropsHooks, getInstance, getPrepareRowHooks, getRowPropsHooks]
+    [
+      getRowPropsHooks,
+      getInstance,
+      flatColumns,
+      cellsHooks,
+      getPrepareRowHooks,
+      getCellPropsHooks,
+    ]
   )
 
   // Snapshot hook and disallow more from being added

src/makeDefaultPluginHooks.js

@@ -1,33 +1,35 @@
+const defaultCells = cell => cell.filter(d => d.column.isVisible)
+
 const defaultGetHeaderProps = (props, instance, column) => ({
-  key: ['header', column.id].join('_'),
+  key: `header_${column.id}`,
   colSpan: column.totalVisibleHeaderCount,
   ...props,
 })
 
 const defaultGetFooterProps = (props, instance, column) => ({
-  key: ['footer', column.id].join('_'),
+  key: `footer_${column.id}`,
   colSpan: column.totalVisibleHeaderCount,
   ...props,
 })
 
 const defaultGetHeaderGroupProps = (props, instance, headerGroup, index) => ({
-  key: ['header', index].join('_'),
+  key: `headerGroup_${index}`,
   ...props,
 })
 
 const defaultGetFooterGroupProps = (props, instance, headerGroup, index) => ({
-  key: ['footer', index].join('_'),
+  key: `footerGroup_${index}`,
   ...props,
 })
 
 const defaultGetRowProps = (props, instance, row) => ({
-  key: ['row', ...row.path].join('_'),
+  key: `row_${row.id}`,
   ...props,
 })
 
 const defaultGetCellProps = (props, instance, cell) => ({
   ...props,
-  key: ['cell', ...cell.row.path, cell.column.id].join('_'),
+  key: `cell_${cell.row.id}_${cell.column.id}`,
 })
 
 export default function makeDefaultPluginHooks() {
@@ -43,6 +45,7 @@ export default function makeDefaultPluginHooks() {
     useInstanceBeforeDimensions: [],
     useInstance: [],
     useRows: [],
+    cells: [defaultCells],
     prepareRow: [],
     getTableProps: [],
     getTableBodyProps: [],

src/plugin-hooks/tests/__snapshots__/useExpanded.test.js.snap

@@ -10,10 +10,10 @@ Snapshot Diff:
     <pre>
       <code>
         {
--   "expanded": []
-+   "expanded": [
-+     "0"
-+   ]
+-   "expanded": {}
++   "expanded": {
++     "0": true
++   }
   }
       </code>
     </pre>
@@ -161,11 +161,11 @@ Snapshot Diff:
     <pre>
       <code>
         {
-    "expanded": [
--     "0"
-+     "0",
-+     "0.0"
-    ]
+    "expanded": {
+-     "0": true
++     "0": true,
++     "0.0": true
+    }
   }
       </code>
     </pre>
@@ -311,12 +311,12 @@ Snapshot Diff:
     <pre>
       <code>
         {
-    "expanded": [
-      "0",
--     "0.0"
-+     "0.0",
-+     "0.0.0"
-    ]
+    "expanded": {
+      "0": true,
+-     "0.0": true
++     "0.0": true,
++     "0.0.0": true
+    }
   }
       </code>
     </pre>
@@ -461,13 +461,13 @@ Snapshot Diff:
 @@ -3,11 +3,12 @@
       <code>
         {
-    "expanded": [
-      "0",
-      "0.0",
--     "0.0.0"
-+     "0.0.0",
-+     "0.0.0.0"
-    ]
+    "expanded": {
+      "0": true,
+      "0.0": true,
+-     "0.0.0": true
++     "0.0.0": true,
++     "0.0.0.0": true
+    }
   }
       </code>
     </pre>
@@ -528,13 +528,13 @@ Snapshot Diff:
     <pre>
       <code>
         {
--   "expanded": [
--     "0",
--     "0.0",
--     "0.0.0",
--     "0.0.0.0"
--   ]
-+   "expanded": []
+-   "expanded": {
+-     "0": true,
+-     "0.0": true,
+-     "0.0.0": true,
+-     "0.0.0.0": true
+-   }
++   "expanded": {}
   }
       </code>
     </pre>

src/plugin-hooks/tests/__snapshots__/useRowSelect.test.js.snap

@@ -485,45 +485,45 @@ Snapshot Diff:
     <pre>
       <code>
         {
--   "selectedRowPaths": []
-+   "selectedRowPaths": [
-+     "0",
-+     "1",
-+     "2",
-+     "2.0",
-+     "2.1",
-+     "3",
-+     "4",
-+     "5",
-+     "6",
-+     "6.0",
-+     "6.1",
-+     "7",
-+     "8",
-+     "9",
-+     "10",
-+     "10.0",
-+     "10.1",
-+     "11",
-+     "12",
-+     "13",
-+     "14",
-+     "14.0",
-+     "14.1",
-+     "15",
-+     "16",
-+     "17",
-+     "18",
-+     "18.0",
-+     "18.1",
-+     "19",
-+     "20",
-+     "21",
-+     "22",
-+     "22.0",
-+     "22.1",
-+     "23"
-+   ]
+-   "selectedRowIds": {}
++   "selectedRowIds": {
++     "0": true,
++     "1": true,
++     "2": true,
++     "3": true,
++     "4": true,
++     "5": true,
++     "6": true,
++     "7": true,
++     "8": true,
++     "9": true,
++     "10": true,
++     "11": true,
++     "12": true,
++     "13": true,
++     "14": true,
++     "15": true,
++     "16": true,
++     "17": true,
++     "18": true,
++     "19": true,
++     "20": true,
++     "21": true,
++     "22": true,
++     "23": true,
++     "2.0": true,
++     "2.1": true,
++     "6.0": true,
++     "6.1": true,
++     "10.0": true,
++     "10.1": true,
++     "14.0": true,
++     "14.1": true,
++     "18.0": true,
++     "18.1": true,
++     "22.0": true,
++     "22.1": true
++   }
   }
       </code>
     </pre>
@@ -1015,45 +1015,45 @@ Snapshot Diff:
     <pre>
       <code>
         {
--   "selectedRowPaths": [
--     "0",
--     "1",
--     "2",
--     "2.0",
--     "2.1",
--     "3",
--     "4",
--     "5",
--     "6",
--     "6.0",
--     "6.1",
--     "7",
--     "8",
--     "9",
--     "10",
--     "10.0",
--     "10.1",
--     "11",
--     "12",
--     "13",
--     "14",
--     "14.0",
--     "14.1",
--     "15",
--     "16",
--     "17",
--     "18",
--     "18.0",
--     "18.1",
--     "19",
--     "20",
--     "21",
--     "22",
--     "22.0",
--     "22.1",
--     "23"
--   ]
-+   "selectedRowPaths": []
+-   "selectedRowIds": {
+-     "0": true,
+-     "1": true,
+-     "2": true,
+-     "3": true,
+-     "4": true,
+-     "5": true,
+-     "6": true,
+-     "7": true,
+-     "8": true,
+-     "9": true,
+-     "10": true,
+-     "11": true,
+-     "12": true,
+-     "13": true,
+-     "14": true,
+-     "15": true,
+-     "16": true,
+-     "17": true,
+-     "18": true,
+-     "19": true,
+-     "20": true,
+-     "21": true,
+-     "22": true,
+-     "23": true,
+-     "2.0": true,
+-     "2.1": true,
+-     "6.0": true,
+-     "6.1": true,
+-     "10.0": true,
+-     "10.1": true,
+-     "14.0": true,
+-     "14.1": true,
+-     "18.0": true,
+-     "18.1": true,
+-     "22.0": true,
+-     "22.1": true
+-   }
++   "selectedRowIds": {}
   }
       </code>
     </pre>
@@ -1129,13 +1129,13 @@ Snapshot Diff:
     <pre>
       <code>
         {
--   "selectedRowPaths": []
-+   "selectedRowPaths": [
-+     "0",
-+     "2",
-+     "2.0",
-+     "2.1"
-+   ]
+-   "selectedRowIds": {}
++   "selectedRowIds": {
++     "0": true,
++     "2": true,
++     "2.0": true,
++     "2.1": true
++   }
   }
       </code>
     </pre>
@@ -1198,13 +1198,13 @@ Snapshot Diff:
     <pre>
       <code>
         {
-    "selectedRowPaths": [
--     "0",
--     "2",
--     "2.0",
--     "2.1"
-+     "0"
-    ]
+    "selectedRowIds": {
+-     "0": true,
+-     "2": true,
+-     "2.0": true,
+-     "2.1": true
++     "0": true
+    }
   }
       </code>
     </pre>
@@ -1241,11 +1241,11 @@ Snapshot Diff:
     <pre>
       <code>
         {
-    "selectedRowPaths": [
--     "0"
-+     "0",
-+     "2.0"
-    ]
+    "selectedRowIds": {
+-     "0": true
++     "0": true,
++     "2.0": true
+    }
   }
       </code>
     </pre>
@@ -1257,6 +1257,19 @@ Snapshot Diff:
 - First value
 + Second value
 
+@@ -163,11 +163,11 @@
+              </label>
+            </div>
+          </td>
+          <td>
+            <div>
+-             Row 2 Not Selected
++             Row 2 Selected
+            </div>
+          </td>
+          <td>
+            joe
+          </td>
 @@ -237,11 +237,11 @@
               </label>
             </div>
@@ -1282,12 +1295,12 @@ Snapshot Diff:
     <pre>
       <code>
         {
-    "selectedRowPaths": [
-      "0",
--     "2.0"
-+     "2.0",
-+     "2.1"
-    ]
+    "selectedRowIds": {
+      "0": true,
+-     "2.0": true
++     "2.0": true,
++     "2.1": true
+    }
   }
       </code>
     </pre>
@@ -1299,6 +1312,19 @@ Snapshot Diff:
 - First value
 + Second value
 
+@@ -163,11 +163,11 @@
+              </label>
+            </div>
+          </td>
+          <td>
+            <div>
+-             Row 2 Selected
++             Row 2 Not Selected
+            </div>
+          </td>
+          <td>
+            joe
+          </td>
 @@ -237,11 +237,11 @@
               </label>
             </div>
@@ -1324,12 +1350,12 @@ Snapshot Diff:
     <pre>
       <code>
         {
-    "selectedRowPaths": [
-      "0",
--     "2.0",
--     "2.1"
-+     "2.0"
-    ]
+    "selectedRowIds": {
+      "0": true,
+-     "2.0": true,
+-     "2.1": true
++     "2.0": true
+    }
   }
       </code>
     </pre>

src/plugin-hooks/tests/useExpanded.test.js

@@ -64,7 +64,7 @@ function Table({ columns: userColumns, data, SubComponent }) {
   return (
     <>
       <pre>
-        <code>{JSON.stringify({ expanded }, null, 2)}</code>
+        <code>{JSON.stringify({ expanded: expanded }, null, 2)}</code>
       </pre>
       <table {...getTableProps()}>
         <thead>

src/plugin-hooks/tests/useRowSelect.test.js

@@ -75,14 +75,43 @@ function Table({ columns, data }) {
     headerGroups,
     rows,
     prepareRow,
-    state: { selectedRowPaths },
+    state: { selectedRowIds },
   } = useTable(
     {
       columns,
       data,
     },
     useRowSelect,
-    useExpanded
+    useExpanded,
+    hooks => {
+      hooks.flatColumns.push(columns => [
+        // Let's make a column for selection
+        {
+          id: 'selection',
+          // The header can use the table's getToggleAllRowsSelectedProps method
+          // to render a checkbox
+          Header: ({ getToggleAllRowsSelectedProps }) => (
+            <div>
+              <label>
+                <IndeterminateCheckbox {...getToggleAllRowsSelectedProps()} />{' '}
+                Select All
+              </label>
+            </div>
+          ),
+          // The cell can use the individual row's getToggleRowSelectedProps method
+          // to the render a checkbox
+          Cell: ({ row }) => (
+            <div>
+              <label>
+                <IndeterminateCheckbox {...row.getToggleRowSelectedProps()} />{' '}
+                Select Row
+              </label>
+            </div>
+          ),
+        },
+        ...columns,
+      ])
+    }
   )
 
   // Render the UI for your table
@@ -113,53 +142,37 @@ function Table({ columns, data }) {
           )}
         </tbody>
       </table>
-      <p>Selected Rows: {selectedRowPaths.size}</p>
+      <p>Selected Rows: {Object.keys(selectedRowIds).length}</p>
       <pre>
         <code>
-          {JSON.stringify(
-            { selectedRowPaths: [...selectedRowPaths.values()] },
-            null,
-            2
-          )}
+          {JSON.stringify({ selectedRowIds: selectedRowIds }, null, 2)}
         </code>
       </pre>
     </>
   )
 }
 
+const IndeterminateCheckbox = React.forwardRef(
+  ({ indeterminate, ...rest }, ref) => {
+    const defaultRef = React.useRef()
+    const resolvedRef = ref || defaultRef
+
+    React.useEffect(() => {
+      resolvedRef.current.indeterminate = indeterminate
+    }, [resolvedRef, indeterminate])
+
+    return <input type="checkbox" ref={resolvedRef} {...rest} />
+  }
+)
+
 function App() {
   const columns = React.useMemo(
     () => [
-      // Let's make a column for selection
-      {
-        id: 'selection',
-        // The header can use the table's getToggleAllRowsSelectedProps method
-        // to render a checkbox
-        Header: ({ getToggleAllRowsSelectedProps }) => (
-          <div>
-            <label>
-              <input type="checkbox" {...getToggleAllRowsSelectedProps()} />{' '}
-              Select All
-            </label>
-          </div>
-        ),
-        // The cell can use the individual row's getToggleRowSelectedProps method
-        // to the render a checkbox
-        Cell: ({ row }) => (
-          <div>
-            <label>
-              <input type="checkbox" {...row.getToggleRowSelectedProps()} />{' '}
-              Select Row
-            </label>
-          </div>
-        ),
-      },
       {
         id: 'selectedStatus',
         Cell: ({ row }) => (
           <div>
-            Row {row.path.join('.')}{' '}
-            {row.isSelected ? 'Selected' : 'Not Selected'}
+            Row {row.id} {row.isSelected ? 'Selected' : 'Not Selected'}
           </div>
         ),
       },

src/plugin-hooks/useAbsoluteLayout.js

@@ -1,4 +1,5 @@
-// Calculating column/cells widths
+import { ensurePluginOrder } from '../utils'
+
 const cellStyles = {
   position: 'absolute',
   top: 0,
@@ -8,6 +9,7 @@ export const useAbsoluteLayout = hooks => {
   hooks.getTableBodyProps.push(getRowStyles)
   hooks.getRowProps.push(getRowStyles)
   hooks.getHeaderGroupProps.push(getRowStyles)
+  hooks.useInstance.push(useInstance)
 
   hooks.getHeaderProps.push((props, instance, header) => [
     props,
@@ -43,3 +45,9 @@ const getRowStyles = (props, instance) => [
     },
   },
 ]
+
+function useInstance({ plugins }) {
+  ensurePluginOrder(plugins, [], useAbsoluteLayout.pluginName, [
+    'useResizeColumns',
+  ])
+}

src/plugin-hooks/useExpanded.js

@@ -7,10 +7,12 @@ import {
   useMountedLayoutEffect,
   useGetLatest,
 } from '../utils'
-import { useConsumeHookGetter } from '../publicUtils'
+import { useConsumeHookGetter, functionalUpdate } from '../publicUtils'
 
 // Actions
-actions.toggleExpandedByPath = 'toggleExpandedByPath'
+actions.toggleExpanded = 'toggleExpanded'
+actions.toggleAllExpanded = 'toggleAllExpanded'
+actions.setExpanded = 'setExpanded'
 actions.resetExpanded = 'resetExpanded'
 
 export const useExpanded = hooks => {
@@ -39,7 +41,7 @@ const defaultGetExpandedToggleProps = (props, instance, row) => [
 function reducer(state, action) {
   if (action.type === actions.init) {
     return {
-      expanded: [],
+      expanded: {},
       ...state,
     }
   }
@@ -47,28 +49,40 @@ function reducer(state, action) {
   if (action.type === actions.resetExpanded) {
     return {
       ...state,
-      expanded: [],
+      expanded: {},
     }
   }
 
-  if (action.type === actions.toggleExpandedByPath) {
-    const { path, expanded } = action
-    const key = path.join('.')
-    const exists = state.expanded.includes(key)
-    const shouldExist = typeof expanded !== 'undefined' ? expanded : !exists
-    let newExpanded = new Set(state.expanded)
-
-    if (!exists && shouldExist) {
-      newExpanded.add(key)
-    } else if (exists && !shouldExist) {
-      newExpanded.delete(key)
-    } else {
-      return state
-    }
-
+  if (action.type === actions.setExpanded) {
     return {
       ...state,
-      expanded: [...newExpanded.values()],
+      expanded: functionalUpdate(action.expanded, state.expanded),
+    }
+  }
+
+  if (action.type === actions.toggleExpanded) {
+    const { id, expanded: setExpanded } = action
+    const exists = state.expanded[id]
+
+    const shouldExist =
+      typeof setExpanded !== 'undefined' ? setExpanded : !exists
+
+    if (!exists && shouldExist) {
+      return {
+        ...state,
+        expanded: {
+          ...state.expanded,
+          [id]: true,
+        },
+      }
+    } else if (exists && !shouldExist) {
+      const { [id]: _, ...rest } = state.expanded
+      return {
+        ...state,
+        expanded: rest,
+      }
+    } else {
+      return state
     }
   }
 }
@@ -95,8 +109,8 @@ function useInstance(instance) {
     }
   }, [dispatch, data])
 
-  const toggleExpandedByPath = (path, expanded) => {
-    dispatch({ type: actions.toggleExpandedByPath, path, expanded })
+  const toggleExpanded = (id, expanded) => {
+    dispatch({ type: actions.toggleExpanded, id, expanded })
   }
 
   // use reference to avoid memory leak in #1608
@@ -108,7 +122,7 @@ function useInstance(instance) {
   )
 
   hooks.prepareRow.push(row => {
-    row.toggleExpanded = set => instance.toggleExpandedByPath(row.path, set)
+    row.toggleExpanded = set => instance.toggleExpanded(row.id, set)
 
     row.getExpandedToggleProps = makePropGetter(
       getExpandedTogglePropsHooks(),
@@ -125,13 +139,15 @@ function useInstance(instance) {
     return rows
   }, [paginateExpandedRows, rows, manualExpandedKey, expanded, expandSubRows])
 
-  const expandedDepth = findExpandedDepth(expanded)
+  const expandedDepth = React.useMemo(() => findExpandedDepth(expanded), [
+    expanded,
+  ])
 
   Object.assign(instance, {
-    toggleExpandedByPath,
     preExpandedRows: rows,
     expandedRows,
     rows: expandedRows,
+    toggleExpanded,
     expandedDepth,
   })
 }
@@ -139,9 +155,9 @@ function useInstance(instance) {
 function findExpandedDepth(expanded) {
   let maxDepth = 0
 
-  expanded.forEach(key => {
-    const path = key.split('.')
-    maxDepth = Math.max(maxDepth, path.length)
+  Object.keys(expanded).forEach(id => {
+    const splitId = id.split('.')
+    maxDepth = Math.max(maxDepth, splitId.length)
   })
 
   return maxDepth

src/plugin-hooks/useFilters.js

@@ -22,10 +22,10 @@ export const useFilters = hooks => {
 
 useFilters.pluginName = 'useFilters'
 
-function reducer(state, action, previousState, instanceRef) {
+function reducer(state, action, previousState, instance) {
   if (action.type === actions.init) {
     return {
-      filters: {},
+      filters: [],
       ...state,
     }
   }
@@ -33,13 +33,14 @@ function reducer(state, action, previousState, instanceRef) {
   if (action.type === actions.resetFilters) {
     return {
       ...state,
-      filters: {},
+      filters: [],
     }
   }
 
   if (action.type === actions.setFilter) {
     const { columnId, filterValue } = action
-    const { flatColumns, userFilterTypes } = instanceRef.current
+    const { flatColumns, userFilterTypes } = instance
+
     const column = flatColumns.find(d => d.id === columnId)
 
     if (!column) {
@@ -54,50 +55,59 @@ function reducer(state, action, previousState, instanceRef) {
       filterTypes
     )
 
-    const newFilter = functionalUpdate(filterValue, state.filters[columnId])
+    const previousfilter = state.filters.find(d => d.id === columnId)
+
+    const newFilter = functionalUpdate(
+      filterValue,
+      previousfilter && previousfilter.value
+    )
 
     //
     if (shouldAutoRemove(filterMethod.autoRemove, newFilter)) {
-      const { [columnId]: remove, ...newFilters } = state.filters
-
       return {
         ...state,
-        filters: newFilters,
+        filters: state.filters.filter(d => d.id !== columnId),
+      }
+    }
+
+    if (previousfilter) {
+      return {
+        ...state,
+        filters: state.filters.map(d => {
+          if (d.id === columnId) {
+            return { id: columnId, value: newFilter }
+          }
+          return d
+        }),
       }
     }
 
     return {
       ...state,
-      filters: {
-        ...state.filters,
-        [columnId]: newFilter,
-      },
+      filters: [...state.filters, { id: columnId, value: newFilter }],
     }
   }
 
   if (action.type === actions.setAllFilters) {
     const { filters } = action
-    const { flatColumns, filterTypes: userFilterTypes } = instanceRef.current
-    const newFilters = functionalUpdate(filters, state.filters)
-
-    // Filter out undefined values
-    Object.keys(newFilters).forEach(id => {
-      const newFilter = newFilters[id]
-      const column = flatColumns.find(d => d.id === id)
-      const filterMethod = getFilterMethod(
-        column.filter,
-        userFilterTypes || {},
-        filterTypes
-      )
-
-      if (shouldAutoRemove(filterMethod.autoRemove, newFilter)) {
-        delete newFilters[id]
-      }
-    })
+    const { flatColumns, filterTypes: userFilterTypes } = instance
 
     return {
       ...state,
-      filters: newFilters,
+      // Filter out undefined values
+      filters: functionalUpdate(filters, state.filters).filter(filter => {
+        const column = flatColumns.find(d => d.id === filter.id)
+        const filterMethod = getFilterMethod(
+          column.filter,
+          userFilterTypes || {},
+          filterTypes
+        )
+
+        if (shouldAutoRemove(filterMethod.autoRemove, filter.value)) {
+          return false
+        }
+        return true
+      }),
     }
   }
 }
@@ -150,7 +160,8 @@ function useInstance(instance) {
 
     // Provide the current filter value to the column for
     // convenience
-    column.filterValue = filters[id]
+    const found = filters.find(d => d.id === id)
+    column.filterValue = found && found.value
   })
 
   // TODO: Create a filter cache for incremental high speed multi-filtering
@@ -159,7 +170,7 @@ function useInstance(instance) {
   // This would make multi-filtering a lot faster though. Too far?
 
   const { filteredRows, filteredFlatRows } = React.useMemo(() => {
-    if (manualFilters || !Object.keys(filters).length) {
+    if (manualFilters || !filters.length) {
       return {
         filteredRows: rows,
         filteredFlatRows: flatRows,
@@ -172,8 +183,8 @@ function useInstance(instance) {
     const filterRows = (rows, depth = 0) => {
       let filteredRows = rows
 
-      filteredRows = Object.entries(filters).reduce(
-        (filteredSoFar, [columnId, filterValue]) => {
+      filteredRows = filters.reduce(
+        (filteredSoFar, { id: columnId, value: filterValue }) => {
           // Find the filters column
           const column = flatColumns.find(d => d.id === columnId)
 
@@ -243,7 +254,7 @@ function useInstance(instance) {
     // Now that each filtered column has it's partially filtered rows,
     // lets assign the final filtered rows to all of the other columns
     const nonFilteredColumns = flatColumns.filter(
-      column => !Object.keys(filters).includes(column.id)
+      column => !filters.find(d => d.id === column.id)
     )
 
     // This essentially enables faceted filter options to be built easily
@@ -263,14 +274,14 @@ function useInstance(instance) {
   }, [dispatch, manualFilters ? null : data])
 
   Object.assign(instance, {
-    setFilter,
-    setAllFilters,
     preFilteredRows: rows,
     preFilteredFlatRows: flatRows,
     filteredRows,
     filteredFlatRows,
     rows: filteredRows,
     flatRows: filteredFlatRows,
+    setFilter,
+    setAllFilters,
   })
 }
 

src/plugin-hooks/useGroupBy.js

@@ -88,15 +88,14 @@ function flatColumns(flatColumns, { state: { groupBy } }) {
   const groupByColumns = groupBy.map(g => flatColumns.find(col => col.id === g))
   const nonGroupByColumns = flatColumns.filter(col => !groupBy.includes(col.id))
 
-  // If a groupByBoundary column is found, place the groupBy's after it
-  const groupByBoundaryColumnIndex =
-    flatColumns.findIndex(column => column.groupByBoundary) + 1
+  flatColumns = [...groupByColumns, ...nonGroupByColumns]
 
-  return [
-    ...nonGroupByColumns.slice(0, groupByBoundaryColumnIndex),
-    ...groupByColumns,
-    ...nonGroupByColumns.slice(groupByBoundaryColumnIndex),
-  ]
+  flatColumns.forEach(column => {
+    column.isGrouped = groupBy.includes(column.id)
+    column.groupedIndex = groupBy.indexOf(column.id)
+  })
+
+  return flatColumns
 }
 
 const defaultUserAggregations = {}
@@ -110,8 +109,6 @@ function useInstance(instance) {
     flatHeaders,
     groupByFn = defaultGroupByFn,
     manualGroupBy,
-    defaultCanGroupBy,
-    disableGroupBy,
     aggregations: userAggregations = defaultUserAggregations,
     hooks,
     plugins,
@@ -119,6 +116,8 @@ function useInstance(instance) {
     dispatch,
     autoResetGroupBy = true,
     manaulGroupBy,
+    disableGroupBy,
+    defaultCanGroupBy,
   } = instance
 
   ensurePluginOrder(plugins, [], 'useGroupBy', ['useSortBy', 'useExpanded'])
@@ -127,13 +126,10 @@ function useInstance(instance) {
 
   flatColumns.forEach(column => {
     const {
-      id,
       accessor,
       defaultGroupBy: defaultColumnGroupBy,
       disableGroupBy: columnDisableGroupBy,
     } = column
-    column.isGrouped = groupBy.includes(id)
-    column.groupedIndex = groupBy.indexOf(id)
 
     column.canGroupBy = accessor
       ? getFirstDefined(
@@ -144,7 +140,7 @@ function useInstance(instance) {
       : getFirstDefined(defaultColumnGroupBy, defaultCanGroupBy, false)
 
     if (column.canGroupBy) {
-      column.toggleGroupBy = () => toggleGroupBy(column.id)
+      column.toggleGroupBy = () => instance.toggleGroupBy(column.id)
     }
 
     column.Aggregated = column.Aggregated || column.Cell
@@ -168,7 +164,7 @@ function useInstance(instance) {
   })
 
   hooks.prepareRow.push(row => {
-    row.cells.forEach(cell => {
+    row.allCells.forEach(cell => {
       // Grouped cells are in the groupBy and the pivot cell for the row
       cell.isGrouped = cell.column.isGrouped && cell.column.id === row.groupByID
       // Repeated cells are any columns in the groupBy that are not grouped
@@ -236,13 +232,9 @@ function useInstance(instance) {
     let groupedFlatRows = []
 
     // Recursively group the data
-    const groupRecursively = (rows, depth = 0, parentPath = []) => {
+    const groupRecursively = (rows, depth = 0, parentId) => {
       // This is the last level, just return the rows
-      if (depth >= groupBy.length) {
-        rows.forEach(row => {
-          row.path = [...parentPath, ...row.path]
-        })
-        groupedFlatRows = groupedFlatRows.concat(rows)
+      if (depth === groupBy.length) {
         return rows
       }
 
@@ -254,24 +246,25 @@ function useInstance(instance) {
       // Recurse to sub rows before aggregation
       groupedRows = Object.entries(groupedRows).map(
         ([groupByVal, subRows], index) => {
-          const path = [...parentPath, `${columnId}:${groupByVal}`]
+          let id = `${columnId}:${groupByVal}`
+          id = parentId ? `${parentId}>${id}` : id
 
-          subRows = groupRecursively(subRows, depth + 1, path)
+          subRows = groupRecursively(subRows, depth + 1, id)
 
           const values = aggregateRowsToValues(subRows, depth < groupBy.length)
 
           const row = {
-            isAggregated: true,
+            id,
+            isGrouped: true,
             groupByID: columnId,
             groupByVal,
             values,
             subRows,
             depth,
             index,
-            path,
           }
 
-          groupedFlatRows.push(row)
+          groupedFlatRows.push(row, ...subRows)
 
           return row
         }
@@ -303,11 +296,12 @@ function useInstance(instance) {
   }, [dispatch, manaulGroupBy ? null : data])
 
   Object.assign(instance, {
+    preGroupedRows: rows,
+    preGroupedFlatRow: flatRows,
     groupedRows,
     groupedFlatRows,
-    toggleGroupBy,
     rows: groupedRows,
     flatRows: groupedFlatRows,
-    preGroupedRows: rows,
+    toggleGroupBy,
   })
 }

src/plugin-hooks/usePagination.js

@@ -25,7 +25,7 @@ export const usePagination = hooks => {
 
 usePagination.pluginName = pluginName
 
-function reducer(state, action, previousState, instanceRef) {
+function reducer(state, action, previousState, instance) {
   if (action.type === actions.init) {
     return {
       pageSize: 10,
@@ -42,7 +42,7 @@ function reducer(state, action, previousState, instanceRef) {
   }
 
   if (action.type === actions.gotoPage) {
-    const { pageCount } = instanceRef.current
+    const { pageCount } = instance
     const newPageIndex = functionalUpdate(action.pageIndex, state.pageIndex)
 
     if (newPageIndex < 0 || newPageIndex > pageCount - 1) {

src/plugin-hooks/useResizeColumns.js

@@ -17,6 +17,11 @@ actions.columnDoneResizing = 'columnDoneResizing'
 
 export const useResizeColumns = hooks => {
   hooks.getResizerProps = [defaultGetResizerProps]
+  hooks.getHeaderProps.push({
+    style: {
+      position: 'relative',
+    },
+  })
   hooks.stateReducers.push(reducer)
   hooks.useInstanceBeforeDimensions.push(useInstanceBeforeDimensions)
 }
@@ -188,16 +193,9 @@ const useInstanceBeforeDimensions = instance => {
   const {
     flatHeaders,
     disableResizing,
-    hooks: { getHeaderProps },
     state: { columnResizing },
   } = instance
 
-  getHeaderProps.push({
-    style: {
-      position: 'relative',
-    },
-  })
-
   const getInstance = useGetLatest(instance)
 
   const getResizerPropsHooks = useConsumeHookGetter(

src/plugin-hooks/useRowSelect.js

@@ -13,7 +13,7 @@ const pluginName = 'useRowSelect'
 
 // Actions
 actions.resetSelectedRows = 'resetSelectedRows'
-actions.toggleRowSelectedAll = 'toggleRowSelectedAll'
+actions.toggleAllRowsSelected = 'toggleAllRowsSelected'
 actions.toggleRowSelected = 'toggleRowSelected'
 
 export const useRowSelect = hooks => {
@@ -47,6 +47,7 @@ const defaultGetToggleRowSelectedProps = (props, instance, row) => {
       },
       checked,
       title: 'Toggle Row Selected',
+      indeterminate: row.isSomeSelected,
     },
   ]
 }
@@ -55,20 +56,24 @@ const defaultGetToggleAllRowsSelectedProps = (props, instance) => [
   props,
   {
     onChange: e => {
-      instance.toggleRowSelectedAll(e.target.checked)
+      instance.toggleAllRowsSelected(e.target.checked)
     },
     style: {
       cursor: 'pointer',
     },
     checked: instance.isAllRowsSelected,
     title: 'Toggle All Rows Selected',
+    indeterminate: Boolean(
+      !instance.isAllRowsSelected &&
+        Object.keys(instance.state.selectedRowIds).length
+    ),
   },
 ]
 
-function reducer(state, action, previousState, instanceRef) {
+function reducer(state, action, previousState, instance) {
   if (action.type === actions.init) {
     return {
-      selectedRowPaths: new Set(),
+      selectedRowIds: {},
       ...state,
     }
   }
@@ -76,103 +81,98 @@ function reducer(state, action, previousState, instanceRef) {
   if (action.type === actions.resetSelectedRows) {
     return {
       ...state,
-      selectedRowPaths: new Set(),
+      selectedRowIds: {},
     }
   }
 
-  if (action.type === actions.toggleRowSelectedAll) {
+  if (action.type === actions.toggleAllRowsSelected) {
     const { selected } = action
-    const { isAllRowsSelected, flatRowPaths } = instanceRef.current
+    const { isAllRowsSelected, flatRowsById } = instance
 
     const selectAll =
       typeof selected !== 'undefined' ? selected : !isAllRowsSelected
 
+    if (selectAll) {
+      const selectedRowIds = {}
+
+      Object.keys(flatRowsById).forEach(rowId => {
+        selectedRowIds[rowId] = true
+      })
+
+      return {
+        ...state,
+        selectedRowIds,
+      }
+    }
+
     return {
       ...state,
-      selectedRowPaths: selectAll ? new Set(flatRowPaths) : new Set(),
+      selectedRowIds: {},
     }
   }
 
   if (action.type === actions.toggleRowSelected) {
-    const { path, selected } = action
-    const { flatRowPaths } = instanceRef.current
+    const { id, selected } = action
+    const { flatGroupedRowsById } = instance
 
-    const key = path.join('.')
-    const childRowPrefixKey = [key, '.'].join('')
-
-    // Join the paths of deep rows
+    // Join the ids of deep rows
     // to make a key, then manage all of the keys
     // in a flat object
-    const exists = state.selectedRowPaths.has(key)
-    const shouldExist = typeof set !== 'undefined' ? selected : !exists
+    const row = flatGroupedRowsById[id]
+    const isSelected = row.isSelected
+    const shouldExist = typeof selected !== 'undefined' ? selected : !isSelected
 
-    let newSelectedRowPaths = new Set(state.selectedRowPaths)
-
-    if (!exists && shouldExist) {
-      flatRowPaths.forEach(rowPath => {
-        if (rowPath === key || rowPath.startsWith(childRowPrefixKey)) {
-          newSelectedRowPaths.add(rowPath)
-        }
-      })
-    } else if (exists && !shouldExist) {
-      flatRowPaths.forEach(rowPath => {
-        if (rowPath === key || rowPath.startsWith(childRowPrefixKey)) {
-          newSelectedRowPaths.delete(rowPath)
-        }
-      })
-    } else {
+    if (isSelected === shouldExist) {
       return state
     }
 
-    const updateParentRow = (selectedRowPaths, path) => {
-      const parentPath = path.slice(0, path.length - 1)
-      const parentKey = parentPath.join('.')
-      const selected =
-        flatRowPaths.filter(rowPath => {
-          const path = rowPath
-          return (
-            path !== parentKey &&
-            path.startsWith(parentKey) &&
-            !selectedRowPaths.has(path)
-          )
-        }).length === 0
-      if (selected) {
-        selectedRowPaths.add(parentKey)
-      } else {
-        selectedRowPaths.delete(parentKey)
+    let newSelectedRowPaths = { ...state.selectedRowIds }
+
+    const handleRowById = id => {
+      const row = flatGroupedRowsById[id]
+
+      if (!row.isGrouped) {
+        if (!isSelected && shouldExist) {
+          newSelectedRowPaths[id] = true
+        } else if (isSelected && !shouldExist) {
+          delete newSelectedRowPaths[id]
+        }
+      }
+
+      if (row.subRows) {
+        return row.subRows.forEach(row => handleRowById(row.id))
       }
-      if (parentPath.length > 1) updateParentRow(selectedRowPaths, parentPath)
     }
 
-    // If the row is a subRow update
-    // its parent row to reflect changes
-    if (path.length > 1) updateParentRow(newSelectedRowPaths, path)
+    handleRowById(id)
 
     return {
       ...state,
-      selectedRowPaths: newSelectedRowPaths,
+      selectedRowIds: newSelectedRowPaths,
     }
   }
 }
 
 function useRows(rows, instance) {
   const {
-    state: { selectedRowPaths },
+    state: { selectedRowIds },
   } = instance
 
   instance.selectedFlatRows = React.useMemo(() => {
     const selectedFlatRows = []
 
     rows.forEach(row => {
-      row.isSelected = getRowIsSelected(row, selectedRowPaths)
+      const isSelected = getRowIsSelected(row, selectedRowIds)
+      row.isSelected = !!isSelected
+      row.isSomeSelected = isSelected === null
 
-      if (row.isSelected) {
+      if (isSelected) {
         selectedFlatRows.push(row)
       }
     })
 
     return selectedFlatRows
-  }, [rows, selectedRowPaths])
+  }, [rows, selectedRowIds])
 
   return rows
 }
@@ -184,7 +184,7 @@ function useInstance(instance) {
     plugins,
     flatRows,
     autoResetSelectedRows = true,
-    state: { selectedRowPaths },
+    state: { selectedRowIds },
     dispatch,
   } = instance
 
@@ -195,12 +195,26 @@ function useInstance(instance) {
     []
   )
 
-  const flatRowPaths = flatRows.map(d => d.path.join('.'))
+  const [flatRowsById, flatGroupedRowsById] = React.useMemo(() => {
+    const all = {}
+    const grouped = {}
 
-  let isAllRowsSelected = !!flatRowPaths.length && !!selectedRowPaths.size
+    flatRows.forEach(row => {
+      if (!row.isGrouped) {
+        all[row.id] = row
+      }
+      grouped[row.id] = row
+    })
+
+    return [all, grouped]
+  }, [flatRows])
+
+  let isAllRowsSelected = Boolean(
+    Object.keys(flatRowsById).length && Object.keys(selectedRowIds).length
+  )
 
   if (isAllRowsSelected) {
-    if (flatRowPaths.some(d => !selectedRowPaths.has(d))) {
+    if (Object.keys(flatRowsById).some(id => !selectedRowIds[id])) {
       isAllRowsSelected = false
     }
   }
@@ -213,13 +227,12 @@ function useInstance(instance) {
     }
   }, [dispatch, data])
 
-  const toggleRowSelectedAll = selected =>
-    dispatch({ type: actions.toggleRowSelectedAll, selected })
+  const toggleAllRowsSelected = selected =>
+    dispatch({ type: actions.toggleAllRowsSelected, selected })
 
-  const toggleRowSelected = (path, selected) =>
-    dispatch({ type: actions.toggleRowSelected, path, selected })
+  const toggleRowSelected = (id, selected) =>
+    dispatch({ type: actions.toggleRowSelected, id, selected })
 
-  // use reference to avoid memory leak in #1608
   const getInstance = useGetLatest(instance)
 
   const getToggleAllRowsSelectedPropsHooks = useConsumeHookGetter(
@@ -238,7 +251,7 @@ function useInstance(instance) {
   )
 
   hooks.prepareRow.push(row => {
-    row.toggleRowSelected = set => toggleRowSelected(row.path, set)
+    row.toggleRowSelected = set => toggleRowSelected(row.id, set)
 
     row.getToggleRowSelectedProps = makePropGetter(
       getToggleRowSelectedPropsHooks(),
@@ -248,20 +261,38 @@ function useInstance(instance) {
   })
 
   Object.assign(instance, {
-    flatRowPaths,
+    flatRowsById,
+    flatGroupedRowsById,
     toggleRowSelected,
-    toggleRowSelectedAll,
+    toggleAllRowsSelected,
     getToggleAllRowsSelectedProps,
     isAllRowsSelected,
   })
 }
 
-function getRowIsSelected(row, selectedRowPaths) {
-  if (row.isAggregated) {
-    return row.subRows.every(subRow =>
-      getRowIsSelected(subRow, selectedRowPaths)
-    )
+function getRowIsSelected(row, selectedRowIds) {
+  if (selectedRowIds[row.id]) {
+    return true
   }
 
-  return selectedRowPaths.has(row.path.join('.'))
+  if (row.subRows && row.subRows.length) {
+    let allChildrenSelected = true
+    let someSelected = false
+
+    row.subRows.forEach(subRow => {
+      // Bail out early if we know both of these
+      if (someSelected && !allChildrenSelected) {
+        return
+      }
+
+      if (getRowIsSelected(subRow, selectedRowIds)) {
+        someSelected = true
+      } else {
+        allChildrenSelected = false
+      }
+    })
+    return allChildrenSelected ? true : someSelected ? null : false
+  }
+
+  return false
 }

src/plugin-hooks/useRowState.js

@@ -34,15 +34,13 @@ function reducer(state, action) {
   }
 
   if (action.type === actions.setRowState) {
-    const { path, value } = action
-
-    const pathKey = path.join('.')
+    const { id, value } = action
 
     return {
       ...state,
       rowState: {
         ...state.rowState,
-        [pathKey]: functionalUpdate(value, state.rowState[pathKey] || {}),
+        [id]: functionalUpdate(value, state.rowState[id] || {}),
       },
     }
   }
@@ -59,10 +57,10 @@ function useInstance(instance) {
   } = instance
 
   const setRowState = React.useCallback(
-    (path, value, columnId) =>
+    (id, value, columnId) =>
       dispatch({
         type: actions.setRowState,
-        path,
+        id,
         value,
         columnId,
       }),
@@ -92,23 +90,21 @@ function useInstance(instance) {
   )
 
   hooks.prepareRow.push(row => {
-    const pathKey = row.path.join('.')
-
     if (row.original) {
       row.state =
-        (typeof rowState[pathKey] !== 'undefined'
-          ? rowState[pathKey]
+        (typeof rowState[row.id] !== 'undefined'
+          ? rowState[row.id]
           : initialRowStateAccessor && initialRowStateAccessor(row)) || {}
 
       row.setState = updater => {
-        return setRowState(row.path, updater)
+        return setRowState(row.id, updater)
       }
 
       row.cells.forEach(cell => {
         cell.state = row.state.cellState || {}
 
         cell.setState = updater => {
-          return setCellState(row.path, cell.column.id, updater)
+          return setCellState(row.id, cell.column.id, updater)
         }
       })
     }

src/plugin-hooks/useSortBy.js

@@ -55,7 +55,7 @@ const defaultGetSortByToggleProps = (props, instance, column) => {
 }
 
 // Reducer
-function reducer(state, action, previousState, instanceRef) {
+function reducer(state, action, previousState, instance) {
   if (action.type === actions.init) {
     return {
       sortBy: [],
@@ -89,7 +89,7 @@ function reducer(state, action, previousState, instanceRef) {
       disableSortRemove,
       disableMultiRemove,
       maxMultiSortColCount = Number.MAX_SAFE_INTEGER,
-    } = instanceRef.current
+    } = instance
 
     const { sortBy } = state
 
@@ -335,9 +335,9 @@ function useInstance(instance) {
   }, [manualSortBy ? null : data])
 
   Object.assign(instance, {
-    toggleSortBy,
     preSortedRows: rows,
     sortedRows,
     rows: sortedRows,
+    toggleSortBy,
   })
 }

src/publicUtils.js

@@ -1,11 +1,13 @@
 import React from 'react'
 
+let renderErr = 'Renderer Error'
+
 export const actions = {
   init: 'init',
 }
 
 export const defaultColumn = {
-  Cell: ({ cell: { value = '' } }) => String(value),
+  Cell: ({ cell: { value = '' } }) => value,
   width: 150,
   minWidth: 0,
   maxWidth: Number.MAX_SAFE_INTEGER,
@@ -43,11 +45,18 @@ function mergeProps(...propList) {
     props = {
       ...props,
       ...rest,
-      style: {
-        ...(props.style || {}),
-        ...(style || {}),
-      },
-      className: [props.className, className].filter(Boolean).join(' '),
+    }
+
+    if (style) {
+      props.style = props.style
+        ? { ...(props.style || {}), ...(style || {}) }
+        : style
+    }
+
+    if (className) {
+      props.className = props.className
+        ? props.className + ' ' + className
+        : className
     }
 
     if (props.className === '') {
@@ -220,3 +229,49 @@ export function useConsumeHookGetter(hooks, hookName) {
   hooks[hookName] = undefined
   return getter
 }
+
+export function makeRenderer(instance, column, meta = {}) {
+  return (type, userProps = {}) => {
+    const Comp = typeof type === 'string' ? column[type] : type
+
+    if (typeof Comp === 'undefined') {
+      throw new Error(renderErr)
+    }
+
+    return flexRender(Comp, { ...instance, column, ...meta, ...userProps })
+  }
+}
+
+export function flexRender(Comp, props) {
+  return isReactComponent(Comp) ? <Comp {...props} /> : Comp
+}
+
+function isClassComponent(component) {
+  return (
+    typeof component === 'function' &&
+    !!(() => {
+      let proto = Object.getPrototypeOf(component)
+      return proto.prototype && proto.prototype.isReactComponent
+    })()
+  )
+}
+
+function isFunctionComponent(component) {
+  return typeof component === 'function'
+}
+
+function isExoticComponent(component) {
+  return (
+    typeof component === 'object' &&
+    typeof component.$$typeof === 'symbol' &&
+    ['react.memo', 'react.forward_ref'].includes(component.$$typeof.description)
+  )
+}
+
+function isReactComponent(component) {
+  return (
+    isClassComponent(component) ||
+    isFunctionComponent(component) ||
+    isExoticComponent(component)
+  )
+}

src/utility-hooks/useTokenPagination.js

@@ -1,6 +1,6 @@
 import React from 'react'
 
-// Token pagination behaves a bit differently from
+// Token pagination behaves a bit different from
 // index based pagination. This hook aids in that process.
 
 export const useTokenPagination = () => {

src/utils.js

@@ -219,28 +219,6 @@ export function getElementDimensions(element) {
   }
 }
 
-export function flexRender(Comp, props) {
-  return isReactComponent(Comp) ? <Comp {...props} /> : Comp
-}
-
-function isClassComponent(component) {
-  return (
-    typeof component === 'function' &&
-    !!(() => {
-      let proto = Object.getPrototypeOf(component)
-      return proto.prototype && proto.prototype.isReactComponent
-    })()
-  )
-}
-
-function isFunctionComponent(component) {
-  return typeof component === 'function'
-}
-
-function isReactComponent(component) {
-  return isClassComponent(component) || isFunctionComponent(component)
-}
-
 export function isFunction(a) {
   if (typeof a === 'function') {
     return a
@@ -272,11 +250,8 @@ export function expandRows(
   const expandedRows = []
 
   const handleRow = row => {
-    const key = row.path.join('.')
-
     row.isExpanded =
-      (row.original && row.original[manualExpandedKey]) ||
-      expanded.includes(key)
+      (row.original && row.original[manualExpandedKey]) || expanded[row.id]
 
     row.canExpand = row.subRows && !!row.subRows.length