The JavaScript this Keyword

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The JavaScript this Keyword

https://www.w3schools.com/js/js_this.asp What is this? The JavaScript this keyword refers to the object it belongs to. It has different values depending on where it is used: In a method, this refers to the owner object. Alone, this refers to the glob…

[Javascript] delete keyword

delete keyword doesn't actually delete the value but just the reference. var me = { name: { first: "Wan" } }; var wan = me.name; delete me.name; console.log(wan.first); //Wan So here, what actually delete is the point of me.name: So the point fr…

专题：点滴Javascript

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JavaScript初学者必看“this”

译者按: JavaScript的this和Java等面向对象语言中的this大不一样,bind().call()和apply()函数更是将this的灵活度进一步延伸. 原文: JavaScript: The Keyword ‘This’ for Beginners 译者: Fundebug 为了保证可读性,本文采用意译而非直译.另外,本文版权归原作者所有,翻译仅用于学习. 如果对JavaScript的关键字this理解不够深刻,有时候会掉入意想不到的坑.在这里我们总结了5条通用规则来帮助你判断t…

Understand JavaScript’s “this” With Clarity, and Master It

The this keyword in JavaScript confuses new and seasoned JavaScript developers alike. This article aims to elucidate this in its entirety. By the time we make it through this article, this will be one part of JavaScript we never have to worry about a…

jQuery自定义组件——输入框设置默认提示文字

if (window.jQuery || window.Zepto) { /** * 设置输入框提示信息 * @param options * @author rubekid */ var setInputTipValue = window.setInputTipValue = function(target, options){ options = options ||{}; var _self = target.get(0); if(_self._initTip){ return false…