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Merge pull request #14266 from CaselIT/patch-8

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[Mathjs] Added node.map and corrected callbacks return type
This commit is contained in:
Arthur Ozga
2017-02-09 16:28:48 -08:00
committed by GitHub
parent c5fe12835a 11b6a6aecf
commit 51d0d15605
1 changed files with 34 additions and 5 deletions
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mathjs/index.d.ts
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+34 -5
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@@ -1395,8 +1395,8 @@ declare namespace mathjs {
* @param {MathNode} callback(node [description]
* @return {[type]} [description]
*/
forEach(callback: (node: MathNode, path: string, parent: MathNode)=>boolean): MathNode[];
forEach(callback: (node: MathNode, path: string, parent: MathNode)=>any): MathNode[];
/**
* `traverse(callback)`
@@ -1426,9 +1426,38 @@ declare namespace mathjs {
*/
traverse(callback: (node: MathNode, path: string, parent: MathNode)=> void): any;
//addEventListener(ev: 'change', callback: (ev: EditorChangeEvent) => any);
transform(callback: (node: MathNode, path: string, parent: MathNode)=>boolean): MathNode[];
/**
* Recursively transform an expression tree via a transform function. Similar to Array.map,
* but recursively executed on all nodes in the expression tree. The callback function is a
* mapping function accepting a node, and returning a replacement for the node or the original node.
* Function callback is called as callback(node: Node, path: string, parent: Node) for every node in
* the tree, and must return a Node. Parameter path is a string containing a relative JSON Path.
*
* For example, to replace all nodes of type SymbolNode having name ‘x’ with a ConstantNode with value 3:
* ```js
* var node = math.parse('x^2 + 5*x');
* var transformed = node.transform(function (node, path, parent) {
* if (node.SymbolNode && node.name == 'x') {
* return new math.expression.node.ConstantNode(3);
* }
* else {
* return node;
* }
* });
* transformed.toString(); // returns '(3 ^ 2) + (5 * 3)'
* ```
*/
transform(callback: (node: MathNode, path: string, parent: MathNode)=>MathNode): MathNode;
/**
* Transform a node. Creates a new Node having it’s childs be the results of calling the provided
* callback function for each of the childs of the original node. The callback function is called
* as `callback(child: Node, path: string, parent: Node)` and must return a Node.
* Parameter path is a string containing a relative JSON Path.
*
*
* See also transform, which is a recursive version of map.
*/
map(callback: (node: MathNode, path: string, parent: MathNode)=>MathNode): MathNode;
}