Merge pull request #5231 from chrootsu/lodash-spread

lodash: added _.spread() method

lodash/lodash-tests.ts

@@ -999,6 +999,14 @@ result = <string>(_.restParam<testRestParamResult, testRestParamFunc>(testRestPa
 result = <string>(_.restParam<testRestParamResult>(testRestParamFn, 2))('a', 'b', 1, 2, 3);
 result = <string>(_(testRestParamFn).restParam<testRestParamResult>(2).value())('a', 'b', 1, 2, 3);
 
+//_.spread
+var testSpreadFn = (who: string, what: string) => who + ' says ' + what;
+interface TestSpreadResultFn {
+    (args: string[]): string;
+}
+result = <string>(_.spread<TestSpreadResultFn>(testSpreadFn))(['fred', 'hello']);
+result = <string>(_(testSpreadFn).spread<TestSpreadResultFn>().value())(['fred', 'hello']);
+
 var throttled = _.throttle(function () { }, 100);
 jQuery(window).on('scroll', throttled);
 

lodash/lodash.d.ts

@@ -5708,6 +5708,25 @@ declare module _ {
         restParam<TResult extends Function>(start?: number): LoDashObjectWrapper<TResult>;
     }
 
+    //_.spread
+    interface LoDashStatic {
+        /**
+         * Creates a function that invokes func with the this binding of the created function and an array of arguments
+         * much like Function#apply.
+         * @param func The function to spread arguments over.
+         * @return Returns the new function.
+         */
+        spread<TResult extends Function>(func: Function): TResult;
+    }
+
+    interface LoDashObjectWrapper<T> {
+        /**
+         * @see _.spread
+         */
+        spread<TResult extends Function>(): LoDashObjectWrapper<TResult>;
+    }
+
+
     //_.throttle
     interface LoDashStatic {
         /**