Array.prototype.forEach中的this

显而易见,forEach方法中的function回调支持3个参数,第1个是遍历的数组内容;第2...Object.prototype.hasOwnProperty.call(this, k)) { fn.call(context, this[k...

Gives 4 different polyfills for the Array.prototype.forEach method with explanations. One of them being an 100% ECMAScript 5.1 compliant version.

如何实现array.prototype.foreach概述EditforEach() 方法让数组的每一项都执行一次给定的函数。语法Editarray.forEach(callback[, thisArg])参数callback在数组每一项上...

这篇文章主要介绍了详解JavaScript中的forEach()方法的使用,是JS入门学习中的基础...Array.prototype.forEach) { Array.prototype.forEach = function(fun /*, this...

(var key in this) { result.push(key); } return result; }, writable:...使用遍历方法Array.prototype.forEach和Array.prototype.map来代替循环,从而让代码更加...

The forEach() method executes a provided function once for each array element.... .prototype.add = function(array) { array.forEach(function(entry) { this...

Array.prototype.forEach.call(this.menuItems, func...) because in browsers without a built–in forEach, it will be a native method and work just fine...

Array.prototype.resolve = function(){ this.forEach(Function.prototype.call, ...在项目中关于Function.prototype.call.call的用法确实少见,而且性能不高,本篇仅仅...

why did you use Array.prototype.forEach.call(... instead of just Array.prototype.forEach(... when in syntax at MDN it says you can define this in...

Plus this to use with html elements: NodeList.prototype.forEach = HTMLCollection.prototype.forEach = Array.prototype.forEach; Voila! share|improve this ans...