diff --git a/types/yoga-layout/index.d.ts b/types/yoga-layout/index.d.ts
new file mode 100644
index 0000000000..4014834802
--- /dev/null
+++ b/types/yoga-layout/index.d.ts
@@ -0,0 +1,414 @@
+// Type definitions for yoga-layout 1.9
+// Project: https://github.com/facebook/yoga#readme
+// Definitions by: tnobody <https://github.com/tnobody>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.1
+
+export const ALIGN_AUTO: 0;
+export const ALIGN_COUNT: 8;
+export const ALIGN_FLEX_START: 1;
+export const ALIGN_CENTER: 2;
+export const ALIGN_FLEX_END: 3;
+export const ALIGN_STRETCH: 4;
+export const ALIGN_BASELINE: 5;
+export const ALIGN_SPACE_BETWEEN: 6;
+export const ALIGN_SPACE_AROUND: 7;
+export const DIMENSION_COUNT: 2;
+export const DIMENSION_WIDTH: 0;
+export const DIMENSION_HEIGHT: 1;
+export const DIRECTION_COUNT: 3;
+export const DIRECTION_INHERIT: 0;
+export const DIRECTION_LTR: 1;
+export const DIRECTION_RTL: 2;
+export const DISPLAY_COUNT: 2;
+export const DISPLAY_FLEX: 0;
+export const DISPLAY_NONE: 1;
+export const EDGE_COUNT: 9;
+export const EDGE_LEFT: 0;
+export const EDGE_TOP: 1;
+export const EDGE_RIGHT: 2;
+export const EDGE_BOTTOM: 3;
+export const EDGE_START: 4;
+export const EDGE_END: 5;
+export const EDGE_HORIZONTAL: 6;
+export const EDGE_VERTICAL: 7;
+export const EDGE_ALL: 8;
+export const EXPERIMENTAL_FEATURE_COUNT: 1;
+export const EXPERIMENTAL_FEATURE_WEB_FLEX_BASIS: 0;
+export const FLEX_DIRECTION_COUNT: 4;
+export const FLEX_DIRECTION_COLUMN: 0;
+export const FLEX_DIRECTION_COLUMN_REVERSE: 1;
+export const FLEX_DIRECTION_ROW: 2;
+export const FLEX_DIRECTION_ROW_REVERSE: 3;
+export const JUSTIFY_COUNT: 6;
+export const JUSTIFY_FLEX_START: 0;
+export const JUSTIFY_CENTER: 1;
+export const JUSTIFY_FLEX_END: 2;
+export const JUSTIFY_SPACE_BETWEEN: 3;
+export const JUSTIFY_SPACE_AROUND: 4;
+export const JUSTIFY_SPACE_EVENLY: 5;
+export const LOG_LEVEL_COUNT: 6;
+export const LOG_LEVEL_ERROR: 0;
+export const LOG_LEVEL_WARN: 1;
+export const LOG_LEVEL_INFO: 2;
+export const LOG_LEVEL_DEBUG: 3;
+export const LOG_LEVEL_VERBOSE: 4;
+export const LOG_LEVEL_FATAL: 5;
+export const MEASURE_MODE_COUNT: 3;
+export const MEASURE_MODE_UNDEFINED: 0;
+export const MEASURE_MODE_EXACTLY: 1;
+export const MEASURE_MODE_AT_MOST: 2;
+export const NODE_TYPE_COUNT: 2;
+export const NODE_TYPE_DEFAULT: 0;
+export const NODE_TYPE_TEXT: 1;
+export const OVERFLOW_COUNT: 3;
+export const OVERFLOW_VISIBLE: 0;
+export const OVERFLOW_HIDDEN: 1;
+export const OVERFLOW_SCROLL: 2;
+export const POSITION_TYPE_COUNT: 2;
+export const POSITION_TYPE_RELATIVE: 0;
+export const POSITION_TYPE_ABSOLUTE: 1;
+export const PRINT_OPTIONS_COUNT: 3;
+export const PRINT_OPTIONS_LAYOUT: 1;
+export const PRINT_OPTIONS_STYLE: 2;
+export const PRINT_OPTIONS_CHILDREN: 4;
+export const UNIT_COUNT: 4;
+export const UNIT_UNDEFINED: 0;
+export const UNIT_POINT: 1;
+export const UNIT_PERCENT: 2;
+export const UNIT_AUTO: 3;
+export const WRAP_COUNT: 3;
+export const WRAP_NO_WRAP: 0;
+export const WRAP_WRAP: 1;
+export const WRAP_WRAP_REVERSE: 2;
+
+interface ConstantsStatic {
+   readonly ALIGN_AUTO: typeof ALIGN_AUTO;
+   readonly ALIGN_COUNT: typeof ALIGN_COUNT;
+   readonly ALIGN_FLEX_START: typeof ALIGN_FLEX_START;
+   readonly ALIGN_CENTER: typeof ALIGN_CENTER;
+   readonly ALIGN_FLEX_END: typeof ALIGN_FLEX_END;
+   readonly ALIGN_STRETCH: typeof ALIGN_STRETCH;
+   readonly ALIGN_BASELINE: typeof ALIGN_BASELINE;
+   readonly ALIGN_SPACE_BETWEEN: typeof ALIGN_SPACE_BETWEEN;
+   readonly ALIGN_SPACE_AROUND: typeof ALIGN_SPACE_AROUND;
+   readonly DIMENSION_COUNT: typeof DIMENSION_COUNT;
+   readonly DIMENSION_WIDTH: typeof DIMENSION_WIDTH;
+   readonly DIMENSION_HEIGHT: typeof DIMENSION_HEIGHT;
+   readonly DIRECTION_COUNT: typeof DIRECTION_COUNT;
+   readonly DIRECTION_INHERIT: typeof DIRECTION_INHERIT;
+   readonly DIRECTION_LTR: typeof DIRECTION_LTR;
+   readonly DIRECTION_RTL: typeof DIRECTION_RTL;
+   readonly DISPLAY_COUNT: typeof DISPLAY_COUNT;
+   readonly DISPLAY_FLEX: typeof DISPLAY_FLEX;
+   readonly DISPLAY_NONE: typeof DISPLAY_NONE;
+   readonly EDGE_COUNT: typeof EDGE_COUNT;
+   readonly EDGE_LEFT: typeof EDGE_LEFT;
+   readonly EDGE_TOP: typeof EDGE_TOP;
+   readonly EDGE_RIGHT: typeof EDGE_RIGHT;
+   readonly EDGE_BOTTOM: typeof EDGE_BOTTOM;
+   readonly EDGE_START: typeof EDGE_START;
+   readonly EDGE_END: typeof EDGE_END;
+   readonly EDGE_HORIZONTAL: typeof EDGE_HORIZONTAL;
+   readonly EDGE_VERTICAL: typeof EDGE_VERTICAL;
+   readonly EDGE_ALL: typeof EDGE_ALL;
+   readonly EXPERIMENTAL_FEATURE_COUNT: typeof EXPERIMENTAL_FEATURE_COUNT;
+   readonly EXPERIMENTAL_FEATURE_WEB_FLEX_BASIS: typeof EXPERIMENTAL_FEATURE_WEB_FLEX_BASIS;
+   readonly FLEX_DIRECTION_COUNT: typeof FLEX_DIRECTION_COUNT;
+   readonly FLEX_DIRECTION_COLUMN: typeof FLEX_DIRECTION_COLUMN;
+   readonly FLEX_DIRECTION_COLUMN_REVERSE: typeof FLEX_DIRECTION_COLUMN_REVERSE;
+   readonly FLEX_DIRECTION_ROW: typeof FLEX_DIRECTION_ROW;
+   readonly FLEX_DIRECTION_ROW_REVERSE: typeof FLEX_DIRECTION_ROW_REVERSE;
+   readonly JUSTIFY_COUNT: typeof JUSTIFY_COUNT;
+   readonly JUSTIFY_FLEX_START: typeof JUSTIFY_FLEX_START;
+   readonly JUSTIFY_CENTER: typeof JUSTIFY_CENTER;
+   readonly JUSTIFY_FLEX_END: typeof JUSTIFY_FLEX_END;
+   readonly JUSTIFY_SPACE_BETWEEN: typeof JUSTIFY_SPACE_BETWEEN;
+   readonly JUSTIFY_SPACE_AROUND: typeof JUSTIFY_SPACE_AROUND;
+   readonly JUSTIFY_SPACE_EVENLY: typeof JUSTIFY_SPACE_EVENLY;
+   readonly LOG_LEVEL_COUNT: typeof LOG_LEVEL_COUNT;
+   readonly LOG_LEVEL_ERROR: typeof LOG_LEVEL_ERROR;
+   readonly LOG_LEVEL_WARN: typeof LOG_LEVEL_WARN;
+   readonly LOG_LEVEL_INFO: typeof LOG_LEVEL_INFO;
+   readonly LOG_LEVEL_DEBUG: typeof LOG_LEVEL_DEBUG;
+   readonly LOG_LEVEL_VERBOSE: typeof LOG_LEVEL_VERBOSE;
+   readonly LOG_LEVEL_FATAL: typeof LOG_LEVEL_FATAL;
+   readonly MEASURE_MODE_COUNT: typeof MEASURE_MODE_COUNT;
+   readonly MEASURE_MODE_UNDEFINED: typeof MEASURE_MODE_UNDEFINED;
+   readonly MEASURE_MODE_EXACTLY: typeof MEASURE_MODE_EXACTLY;
+   readonly MEASURE_MODE_AT_MOST: typeof MEASURE_MODE_AT_MOST;
+   readonly NODE_TYPE_COUNT: typeof NODE_TYPE_COUNT;
+   readonly NODE_TYPE_DEFAULT: typeof NODE_TYPE_DEFAULT;
+   readonly NODE_TYPE_TEXT: typeof NODE_TYPE_TEXT;
+   readonly OVERFLOW_COUNT: typeof OVERFLOW_COUNT;
+   readonly OVERFLOW_VISIBLE: typeof OVERFLOW_VISIBLE;
+   readonly OVERFLOW_HIDDEN: typeof OVERFLOW_HIDDEN;
+   readonly OVERFLOW_SCROLL: typeof OVERFLOW_SCROLL;
+   readonly POSITION_TYPE_COUNT: typeof POSITION_TYPE_COUNT;
+   readonly POSITION_TYPE_RELATIVE: typeof POSITION_TYPE_RELATIVE;
+   readonly POSITION_TYPE_ABSOLUTE: typeof POSITION_TYPE_ABSOLUTE;
+   readonly PRINT_OPTIONS_COUNT: typeof PRINT_OPTIONS_COUNT;
+   readonly PRINT_OPTIONS_LAYOUT: typeof PRINT_OPTIONS_LAYOUT;
+   readonly PRINT_OPTIONS_STYLE: typeof PRINT_OPTIONS_STYLE;
+   readonly PRINT_OPTIONS_CHILDREN: typeof PRINT_OPTIONS_CHILDREN;
+   readonly UNIT_COUNT: typeof UNIT_COUNT;
+   readonly UNIT_UNDEFINED: typeof UNIT_UNDEFINED;
+   readonly UNIT_POINT: typeof UNIT_POINT;
+   readonly UNIT_PERCENT: typeof UNIT_PERCENT;
+   readonly UNIT_AUTO: typeof UNIT_AUTO;
+   readonly WRAP_COUNT: typeof WRAP_COUNT;
+   readonly WRAP_NO_WRAP: typeof WRAP_NO_WRAP;
+   readonly WRAP_WRAP: typeof WRAP_WRAP;
+   readonly WRAP_WRAP_REVERSE: typeof WRAP_WRAP_REVERSE;
+}
+
+declare const Constans: ConstantsStatic;
+
+export type YogaJustifyContent =
+    | typeof JUSTIFY_CENTER
+    | typeof JUSTIFY_FLEX_END
+    | typeof JUSTIFY_FLEX_START
+    | typeof JUSTIFY_SPACE_AROUND
+    | typeof JUSTIFY_SPACE_BETWEEN
+    | typeof JUSTIFY_SPACE_EVENLY;
+
+export type YogaAlign =
+    | typeof ALIGN_AUTO
+    | typeof ALIGN_BASELINE
+    | typeof ALIGN_CENTER
+    | typeof ALIGN_FLEX_END
+    | typeof ALIGN_FLEX_START
+    | typeof ALIGN_SPACE_AROUND
+    | typeof ALIGN_SPACE_BETWEEN
+    | typeof ALIGN_STRETCH;
+
+export type YogaFlexDirection =
+    | typeof FLEX_DIRECTION_COLUMN
+    | typeof FLEX_DIRECTION_COLUMN_REVERSE
+    | typeof FLEX_DIRECTION_COUNT
+    | typeof FLEX_DIRECTION_ROW
+    | typeof FLEX_DIRECTION_ROW_REVERSE;
+
+export type YogaDirection =
+    | typeof DIRECTION_INHERIT
+    | typeof DIRECTION_LTR
+    | typeof DIRECTION_RTL;
+
+export type YogaFlexWrap =
+    | typeof WRAP_NO_WRAP
+    | typeof WRAP_WRAP
+    | typeof WRAP_WRAP_REVERSE;
+
+export type YogaEdge =
+    | typeof EDGE_LEFT
+    | typeof EDGE_TOP
+    | typeof EDGE_RIGHT
+    | typeof EDGE_BOTTOM
+    | typeof EDGE_START
+    | typeof EDGE_END
+    | typeof EDGE_HORIZONTAL
+    | typeof EDGE_VERTICAL
+    | typeof EDGE_ALL;
+
+export type YogaDisplay =
+    | typeof DISPLAY_FLEX
+    | typeof DISPLAY_NONE;
+
+export type YogaUnit =
+    | typeof UNIT_AUTO
+    | typeof UNIT_PERCENT
+    | typeof UNIT_POINT
+    | typeof UNIT_UNDEFINED;
+
+export type YogaOverflow =
+    | typeof OVERFLOW_HIDDEN
+    | typeof OVERFLOW_SCROLL
+    | typeof OVERFLOW_VISIBLE;
+
+export type YogaPositionType =
+    | typeof POSITION_TYPE_ABSOLUTE
+    | typeof POSITION_TYPE_RELATIVE;
+
+export type YogaExperimentalFeature = typeof EXPERIMENTAL_FEATURE_WEB_FLEX_BASIS;
+
+export interface YogaNode {
+    calculateLayout(
+        width?: number,
+        height?: number,
+        direction?: YogaDirection,
+    ): void;
+    copyStyle(node: YogaNode): void;
+    free(): void;
+    freeRecursive(): void;
+    getAlignContent(): YogaAlign;
+    getAlignItems(): YogaAlign;
+    getAlignSelf(): YogaAlign;
+    getAspectRatio(): number;
+    getBorder(edge: YogaEdge): number;
+    getChild(index: number): YogaNode;
+    getChildCount(): number;
+    getComputedBorder(edge: YogaEdge): number;
+    getComputedBottom(): number;
+    getComputedHeight(): number;
+    getComputedLayout(): Layout;
+    getComputedLeft(): number;
+    getComputedMargin(edge: YogaEdge): number;
+    getComputedPadding(edge: YogaEdge): number;
+    getComputedRight(): number;
+    getComputedTop(): number;
+    getComputedWidth(): number;
+    getDisplay(): YogaDisplay;
+    getFlexBasis(): number;
+    getFlexDirection(): YogaFlexDirection;
+    getFlexGrow(): number;
+    getFlexShrink(): number;
+    getFlexWrap(): YogaFlexWrap;
+    getHeight(): Value;
+    getJustifyContent(): YogaJustifyContent;
+    getMargin(edge: YogaEdge): Value;
+    getMaxHeight(): Value;
+    getMaxWidth(): Value;
+    getMinHeight(): Value;
+    getMinWidth(): Value;
+    getOverflow(): YogaOverflow;
+    getPadding(edge: YogaEdge): Value;
+    getParent(): YogaNode | null;
+    getPosition(edge: YogaEdge): Value;
+    getPositionType(): YogaPositionType;
+    getWidth(): Value;
+    insertChild(child: YogaNode, index: number): void;
+    isDirty(): boolean;
+    markDirty(): void;
+    removeChild(child: YogaNode): void;
+    reset(): void;
+    setAlignContent(alignContent: YogaAlign): void;
+    setAlignItems(alignItems: YogaAlign): void;
+    setAlignSelf(alignSelf: YogaAlign): void;
+    setAspectRatio(aspectRatio: number): void;
+    setBorder(edge: YogaEdge, borderWidth: number): void;
+    setDisplay(display: YogaDisplay): void;
+    setFlex(flex: number): void;
+    setFlexBasis(flexBasis: number | string): void;
+    setFlexBasisPercent(flexBasis: number): void;
+    setFlexDirection(flexDirection: YogaFlexDirection): void;
+    setFlexGrow(flexGrow: number): void;
+    setFlexShrink(flexShrink: number): void;
+    setFlexWrap(flexWrap: YogaFlexWrap): void;
+    setHeight(height: number | string): void;
+    setHeightAuto(): void;
+    setHeightPercent(height: number): void;
+    setJustifyContent(justifyContent: YogaJustifyContent): void;
+    setMargin(edge: YogaEdge, margin: number): void;
+    setMarginAuto(edge: YogaEdge): void;
+    setMarginPercent(edge: YogaEdge, margin: number): void;
+    setMaxHeight(maxHeight: number | string): void;
+    setMaxHeightPercent(maxHeight: number): void;
+    setMaxWidth(maxWidth: number | string): void;
+    setMaxWidthPercent(maxWidth: number): void;
+    setMeasureFunc(measureFunc: (() => any) | null): void;
+    setMinHeight(minHeight: number | string): void;
+    setMinHeightPercent(minHeight: number): void;
+    setMinWidth(minWidth: number | string): void;
+    setMinWidthPercent(minWidth: number): void;
+    setOverflow(overflow: YogaOverflow): void;
+    setPadding(edge: YogaEdge, padding: number | string): void;
+    setPaddingPercent(edge: YogaEdge, padding: number): void;
+    setPosition(edge: YogaEdge, position: number | string): void;
+    setPositionPercent(edge: YogaEdge, position: number): void;
+    setPositionType(positionType: YogaPositionType): void;
+    setWidth(width: number | string): void;
+    setWidthAuto(): void;
+    setWidthPercent(width: number): void;
+    unsetMeasureFun(): void;
+}
+
+export class Layout {
+    readonly left: number;
+    readonly right: number;
+    readonly top: number;
+    readonly bottom: number;
+    readonly width: number;
+    readonly height: number;
+    constructor(
+        left: number,
+        right: number,
+        top: number,
+        bottom: number,
+        width: number,
+        height: number,
+    );
+
+    fromJs(expose: (
+        left: number,
+        right: number,
+        top: number,
+        bottom: number,
+        width: number,
+        height: number,
+    ) => any): void;
+
+    toString(): string;
+}
+
+export class Size {
+    static fromJS(dim: { width: number, height: number }): Size;
+
+    readonly width: number;
+    readonly height: number;
+
+    constructor(width: number, height: number);
+
+    fromJS(expose: (width: number, height: number) => any): void;
+
+    toString(): string;
+}
+
+export class Value {
+    readonly unit: YogaUnit | number;
+    readonly value: number;
+
+    constructor(unit: YogaUnit | number, value: number);
+
+    fromJS(expose: (unit: YogaUnit | number, value: number) => any): void;
+
+    toString(): string;
+    valueOf(): number;
+}
+
+export interface YogaConfig {
+    isExperimentalFeatureEnabled(feature: YogaExperimentalFeature): boolean;
+    setExperimentalFeatureEnabled(
+        feature: YogaExperimentalFeature,
+        enabled: boolean,
+    ): void;
+    setPointScaleFactor(factor: number): void;
+}
+
+interface NodeStatic {
+    create(): YogaNode;
+    createDefault(): YogaNode;
+    createWithConfig(config: YogaConfig): YogaNode;
+    destroy(node: YogaNode): any;
+}
+
+export const Node: NodeStatic;
+
+interface ConfigStatic {
+    create(): YogaConfig;
+    destroy(config: YogaConfig): any;
+}
+
+export const Config: ConfigStatic;
+
+interface YogaStatic extends ConstantsStatic {
+    Node: typeof Node;
+    Config: typeof Config;
+    Layout: typeof Layout;
+    Size: typeof Size;
+    Value: typeof Value;
+    getInstanceCount(): number;
+}
+
+declare const Yoga: YogaStatic;
+
+export default Yoga;
diff --git a/types/yoga-layout/tsconfig.json b/types/yoga-layout/tsconfig.json
new file mode 100644
index 0000000000..d7224a2b00
--- /dev/null
+++ b/types/yoga-layout/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "strictFunctionTypes": true,
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "yoga-layout-tests.ts"
+    ]
+}
diff --git a/types/yoga-layout/tslint.json b/types/yoga-layout/tslint.json
new file mode 100644
index 0000000000..369f49adf2
--- /dev/null
+++ b/types/yoga-layout/tslint.json
@@ -0,0 +1,6 @@
+{ 
+    "extends": "dtslint/dt.json",
+    "rules": {
+        "file-name-casing": false
+    }
+}
diff --git a/types/yoga-layout/yoga-layout-tests.ts b/types/yoga-layout/yoga-layout-tests.ts
new file mode 100644
index 0000000000..c2effbef23
--- /dev/null
+++ b/types/yoga-layout/yoga-layout-tests.ts
@@ -0,0 +1,24 @@
+import yoga, { Node, Config, Size, Value, DISPLAY_FLEX } from 'yoga-layout';
+
+const cfg = Config.create();
+
+cfg.isExperimentalFeatureEnabled(yoga.EXPERIMENTAL_FEATURE_WEB_FLEX_BASIS);
+
+const root = Node.createWithConfig(cfg);
+root.setWidth(500);
+root.setHeight(300);
+root.setJustifyContent(yoga.JUSTIFY_CENTER);
+
+const node1 = yoga.Node.create();
+node1.setWidth(100);
+node1.setHeight(100);
+node1.setDisplay(DISPLAY_FLEX);
+
+const node2 = Node.create();
+node2.setWidth(100);
+node2.setHeight(100);
+
+root.insertChild(node1, 0);
+root.insertChild(node2, 1);
+
+root.calculateLayout(500, 300, yoga.DIRECTION_LTR);