Merge pull request #1574 from david-driscoll/master

lodash.d.ts - (feat): Updated function methods to be generic

lodash/lodash-tests.disabled.ts

@@ -592,6 +592,9 @@ source.addEventListener('message', <_.LoDashObjectWrapper<Function>>_(function()
   'maxWait': 1000
 }), false);
 
+var returnedDebounce = _.throttle(function (a) { return a * 5; }, 5);
+returnedThrottled(4);
+
 result = <number>_.defer(function() { console.log('deferred'); });
 result = <_.LoDashWrapper<number>>_(function() { console.log('deferred'); }).defer();
 
@@ -608,15 +611,20 @@ var data = {
   'curly': { 'name': 'curly', 'age': 60 }
 };
 
-var stooge = <Function>_.memoize(function(name: string) { return data[name]; }, _.identity);
+var stooge = _.memoize(function(name: string) { return data[name]; }, _.identity);
 stooge('curly');
 
 stooge['cache']['curly'].name = 'jerome';
 stooge('curly');
 
-var initialize = <Function>_.once(function(){ });
-initialize();
+var returnedMemoize = _.throttle(function (a) { return a * 5; }, 5);
+returnedMemoize(4);
+
+var initialize = _.once(function(){ });
 initialize();
+initialize();''
+var returnedOnce = _.throttle(function (a) { return a * 5; }, 5);
+returnedOnce(4);
 
 var greetPartial = function(greeting: string, name: string) { return greeting + ' ' + name; };
 var hi = <Function>_.partial(greetPartial, 'hi');
@@ -638,6 +646,9 @@ jQuery('.interactive').on('click', _.throttle(function() { }, 300000, {
   'trailing': false
 }));
 
+var returnedThrottled = _.throttle(function (a) { return a*5; }, 5);
+returnedThrottled(4);
+
 var helloWrap = function(name: string) { return 'hello ' + name; };
 var helloWrap2 = _.wrap(helloWrap, function(func) {
   return 'before, ' + func('moe') + ', after';
@@ -950,9 +961,9 @@ class Mage {
 }
 
 var mage = new Mage(); 
-result = <number[]>_.times(3, _.partial(_.random, 1, 6));
-result = <number[]>_.times(3, function(n: number) { mage.castSpell(n); });
-result = <number[]>_.times(3, function(n: number) { this.cast(n); }, mage);
+result = _.times(3, <() => number>_.partial(_.random, 1, 6));
+result = _.times(3, function(n: number) { mage.castSpell(n); });
+result = _.times(3, function(n: number) { this.cast(n); }, mage);
 
 result = <string>_.unescape('Moe, Larry &amp; Curly');
 

lodash/lodash.d.ts

@@ -2580,10 +2580,10 @@ declare module _ {
 		* @param options.trailing Specify execution on the trailing edge of the timeout.
 		* @return The new debounced function.
 		**/
-		debounce(
-			func: Function,
+		debounce<T extends Function>(
+			func: T,
 			wait: number,
-			options?: DebounceSettings): Function;			
+			options?: DebounceSettings): T;			
 	}
 
 	interface LoDashObjectWrapper<T> {
@@ -2670,9 +2670,9 @@ declare module _ {
 		* @param resolver Hash function for storing the result of `fn`.
 		* @return Returns the new memoizing function.
 		**/
-		memoize(
-			func: Function,
-			resolver?: (n: any) => string): Function;
+        memoize<T extends Function>(
+			func: T,
+			resolver?: (n: any) => string): T;
 	}
 
 	//_.once
@@ -2684,7 +2684,7 @@ declare module _ {
 		* @param func Function to only execute once.
 		* @return The new restricted function.
 		**/
-		once(func: Function): Function;
+        once<T extends Function>(func: T): T;
 	}
 
 	//_.partial
@@ -2733,10 +2733,10 @@ declare module _ {
 		* @param options.trailing Specify execution on the trailing edge of the timeout.
 		* @return The new throttled function.
 		**/
-		throttle(
-			func: any,
+        throttle<T extends Function>(
+			func: T,
 			wait: number,
-			options?: ThrottleSettings): Function;
+			options?: ThrottleSettings): T;
 	}
 
 	interface ThrottleSettings {
@@ -3764,7 +3764,7 @@ declare module _ {
 		**/
 		times<TResult>(
 			n: number, 
-			callback: Function, 
+			callback: (num: number) => TResult, 
 			context?: any): TResult[];
 	}