added _.wrap definition, fixed bugs in tests, removed duplicate/old tests

lodash/lodash-tests.ts

@@ -501,13 +501,19 @@ var optionsPartialRight = {
 
 defaultsDeep(optionsPartialRight, _.templateSettings);
 
-var throttled = _.throttle(updatePosition, 100);
+var throttled = _.throttle(function () { }, 100);
 jQuery(window).on('scroll', throttled);
 
 jQuery('.interactive').on('click', _.throttle(function() { }, 300000, {
   'trailing': false
 }));
 
+var helloWrap = function(name) { return 'hello ' + name; };
+var helloWrap2 = _.wrap(helloWrap, function(func) {
+  return 'before, ' + func('moe') + ', after';
+});
+helloWrap2();
+
 
 
 
@@ -559,36 +565,6 @@ _.merge(mergeFood, mergeOtherFood, function(a, b) {
 
 
 
-///////////////////////////////////////////////////////////////////////////////////////
-
-
-
-var updatePosition = () => alert('updating position...');
-var throttled = _.throttle(updatePosition, 100);
-$(window).scroll(throttled);
-
-var createApplication = () => alert('creating application...');
-var initialize = _.once(createApplication);
-initialize();
-initialize();
-
-// var notes: any[];
-// var render = () => alert("rendering...");
-// var renderNotes = _.after(notes.length, render);
-// _.each(notes, (note) => note.asyncSave({ success: renderNotes }));
-
-var hello = function (name) { return "hello: " + name; };
-// can't use the same "hello" var otherwise typescript fails
-var hello2 = _.wrap(hello, (func) => { return "before, " + func("moe") + ", after"; });
-hello2();
-
-var greet = function (name) { return "hi: " + name; };
-var exclaim = function (statement) { return statement + "!"; };
-var welcome = _.compose(exclaim, greet);
-welcome('moe');
-
-///////////////////////////////////////////////////////////////////////////////////////
-
 _.keys({ one: 1, two: 2, three: 3 });
 _.values({ one: 1, two: 2, three: 3 });
 _.pairs({ one: 1, two: 2, three: 3 });

lodash/lodash.d.ts

@@ -1925,7 +1925,17 @@ declare module _ {
 		wait: number,
 		options?: ThrottleSettings): Function;
 
-	
+	/**
+	* Creates a function that provides value to the wrapper function as its first argument. 
+	* Additional arguments provided to the function are appended to those provided to the 
+	* wrapper function. The wrapper is executed with the this binding of the created function.
+	* @param value The value to wrap.
+	* @param wrapper The wrapper function.
+	* @return The new function.
+	**/
+	export function wrap(
+		value: any,
+		wrapper: (func: Function, ...args: any[]) => any): Function;
 
 	
 
@@ -2089,26 +2099,6 @@ declare module _ {
 	
 
 	
-
-	
-
-	
-
-	
-
-	
-
-	/**
-	* Wraps the first function inside of the wrapper function, passing it as the first argument. This allows
-	* the wrapper to execute code before and after the function runs, adjust the arguments, and execute it
-	* conditionally.
-	* @param fn Function to wrap.
-	* @param wrapper The function that will wrap `fn`.
-	* @return Wrapped version of `fn.
-	**/
-	export function wrap(
-		fn: Function,
-		wrapper: (fn: Function, ...args: any[]) => any): Function;