这篇文章拖了有两周,今天来跟大家聊聊 JavaScript 中一类特殊的对象 -> Array-Like Objects. (本文节选自 underscore 源码解读系列文章,完整版请关注 https://github.com/hanzichi/underscore-analysis) Array-Like JavaScript 中一切皆为对象,那么什么是 Array-Like Objects?顾名思义,就是像数组的对象,当然,数组本身就是对象嘛!稍微有点基础的同学,一定知道 argument…

这是 JavaScript standard 代码规范的全文. 掌握本规范的最好方法是安装并在自己的代码中使用它. 细则 使用两个空格进行缩进. eslint: indent function hello (name) {   console.log('hi', name) } 除需要转义的情况外,字符串统一使用单引号. eslint: quotes console.log('hello there') $("<div class='box'>") 不要定义未使用的变量.…

这是 JavaScript standard 代码规范的全文. 掌握本规范的最好方法是安装并在自己的代码中使用它. https://github.com/standard/standard/blob/master/docs/RULES-zhcn.md…

代码风格JavaScript  standard style与Airbnb style…

标准对象分类 Value Properties 以下全局属性返回一个简单的值:它们没有属性或者方法: Infinity NaN undefined null literal Function Properties 这些全局函数 - 全局调用而不是对象 - 直接将其结果返回给调用者. eval() uneval() isFinite() isNaN() parseFloat() parseInt() decodeURI() decodeURIComponent() encodeURI() enco…

Objects have the ability to use data and methods that other objects contain, as long as it lives on the [prototype] chain. In this lesson we’ll test this out by adding properties and working with this linkage of properties. const obj = {firstName: 'T…

By default, Travis will build all branches, tags, and Pull Requests. Because we're building our master branch before we release, we don't need Travis building our releases. Also, we don't care to have Travis build all the branches. So we're going to…

Objects  An object is a self-contained collection of data. This data comes in to forms:  properties and methods A property is a variable belonging to an object A method is a function that the object can invoke   In JavaScript you can create your own…

Objects Object Usage and Properties Everything in JavaScript acts like an object, with the only two exceptions being null and undefined. false.toString(); // 'false' [1, 2, 3].toString(); // '1,2,3' function Foo(){} Foo.bar = 1; Foo.bar; A common mis…

Most built-in JavaScript types are constructors whose prototypes contain the methods and other properties that define their default behavior: //(results will vary by browser) Object.getOwnPropertyNames(Function.prototype) //["bind", "argume…

JavaScript solves multiple purposes; it helps you to create interactive websites, web applications, and many more. Using JavaScript into your projects lets you move HTML elements around, create a myriad of custom animations, speedup your applications…

原文链接:A re-introduction to JavaScript (JS tutorial) Why a re-introduction? Because JavaScript is notorious for being the world's most misunderstood programming language. It is often derided as being a toy, but beneath its layer of deceptive simplicity…

A re-introduction to JavaScript (JS Tutorial) Redirected from https://developer.mozilla.org/en-US/docs/JavaScript/A_re-introduction_to_JavaScript IN THIS ARTICLE Introduction Overview Numbers Strings Other types Variables Operators Control structures…

  投递人 itwriter 发布于 2011-09-26 17:46 评论(3) 有1956人阅读 原文链接 [收藏] « » 本文介绍 20 个值得一试的 JavaScript 框架,如果你认为答案是 jQuery,那你只能得F级的评级. 闲话少说,看看便知,列表如下: Sproutcore Sproutcore 提供大量的高性能应用包括 MobileMe 等.Sproutcore 拥有个 UI 框架,标准 MVC 架构及完整友好的文档. 相关链接: Using SproutCore 2.0…

原文:http://www.cnblogs.com/yanhaijing/p/3685304.html 这是我所知道的最完整最简洁的JavaScript基础教程. 这篇文章带你尽快走进JavaScript的世界——前提是你有一些编程经验的话.本文试图描述这门语言的最小子集.我给这个子集起名叫做“JavaScript简易教程”,并推荐准备深入阅读细节和高级技巧之前的新手阅读.心急吃不了热豆腐.文章的最后提出如何进一步学习. 警告:下面是我所描述的规则集和最佳实践.我喜欢整洁清晰(例如,你可以随时通…

It seems almost every other week there is a new JavaScript library taking the web community by storm! The web community is increasingly vibrant, diverse and is moving rapidly on multiple fronts. It would be an impossible feat to survey every major Ja…

One of the first challenges developers new to JavaScript who are building large applications will have to face is how to go about organizing their code. Most start by embedding hundreds of lines of code between a <script> tag which works but quickly…

Let's take a closer look at using Javascript's built in Array reduce function. Reduce is deceptively simple and when harnessed correctly can achieve very powerful results. By leveraging reduce, we can answer a variety of questions on a single, simple…

经常在百度搜索框输入一部分关键词后,弹出候选关键热词.现在我们就用Ajax技术来实现这一功能. 一.下载json.js文件 百度搜一下,最好到json官网下载,安全起见. 并与新建的两个文件部署如图 json.js也可直接复制此处的代码获取. /* json.js 2008-03-14 Public Domain No warranty expressed or implied. Use at your own risk. This file has been superceded by htt…

这是我所知道的最完整最简洁的JavaScript基础教程. 这篇文章带你尽快走进JavaScript的世界——前提是你有一些编程经验的话.本文试图描述这门语言的最小子集.我给这个子集起名叫做“JavaScript简易教程”,并推荐准备深入阅读细节和高级技巧之前的新手阅读.心急吃不了热豆腐.文章的最后提出如何进一步学习. 警告:下面是我所描述的规则集和最佳实践.我喜欢整洁清晰(例如,你可以随时通过下面的目录快速导航).规则是无懈可击的,但不可避免——每个人的理解不同. 目录 1. 本文约定 2.…

https://developer.mozilla.org/en-US/docs/Mozilla/JavaScript_code_modules Non-standardThis feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be la…

The Complete Javascript Number Reference Filed: Mon, Apr 30 2007 under Programming|| Tags: reference javascript numbers number math Javascript is not a typed language so it should come as no surprise that there are no specific integer or floating-poi…

SVG 是一种分辨率无关的图形(矢量图形).这意味着它在任何类型的屏幕都不会遭受任何质量损失.除此之外,你可以让 SVG 灵活现一些动画效果.这篇文章就给大家推荐8个实现 SVG 动画的 JavaScript 库. 您可能感兴趣的相关文章 网站开发中很有用的 jQuery 效果[附源码] 分享35个让人惊讶的 CSS3 动画效果演示 十分惊艳的8个 HTML5 & JavaScript 特效 Web 开发中很实用的10个效果[源码下载] 12款经典的白富美型 jQuery 图片轮播插件 1. W…

以下内容主要摘自［1,2］ (1)In javascript, functions are first-class objects, which means functions can be used in a first-class manner like objects, since they are in fact objects themselves: They can be “stored in variables, passed as arguments to functions,…

转自:http://blog.leapoahead.com/2015/09/15/js-closure/ 我研究JavaScript闭包(closure)已经有一段时间了.我之前只是学会了如何使用它们,而没有透彻地了解它们具体是如何运作的.那么,究竟什么是闭包? Wikipedia 给出的解释并没有太大的帮助.闭包是什么时候被创建的,什么时候被销毁的?具体的实现又是怎么样的? "use strict"; var myClosure = (function outerFunction()…

JavaScript is all about objects. Objects are the foundation of everything, so if you’re unfamiliar with objects, you’re going to learn quickly. The goal of this book is not to be a JavaScript or DOM code reference, but in order to make sure you under…

在stack overflow中看到一个人回答,如下   // constructor function function MyClass () { var privateVariable; // private member only available within the constructor fn this.privilegedMethod = function () { // it can access private members //.. }; } // A 'static m…

这篇文章通过四种方式获取Javascript中的数据类型:通过隐藏的内置[[Class]]属性:通过typeof运算符:通过instanceof运算符:通过函数Array.isArray().我们也会看看原型对象的构造函数,可能会有意想不到的数据类型结果. [这篇文章是我在adobe发布的文章,我发布在这里只是为了存档.] 知识储备 在开始我们的话题之前,我们不得不复习一些所需的知识点 1.1 原始值和对象 Javascript中的数据,要么是原始值,要么是对象. 原始值.下面是原始值: und…

Private Members in JavaScript Douglas Crockford www.crockford.com JavaScript is the world's most misunderstood programming language. Some believe that it lacks the property of information hiding because objects cannot have private instance variables…

本文翻译自:https://www.sitepoint.com/vs-code-extensions-javascript-developers/ 转载请注明出处:葡萄城官网,葡萄城为开发者提供专业的开发工具.解决方案和服务,赋能开发者. 如今,Visual Studio Code无疑是最流行的轻量级代码编辑器.它确实从其他代码编辑器那借鉴了很多,最主要是从Sublime和Atom那里.然而它的成功关键是源于能提供更好的性能和稳定的表现.另外,它还提供了如代码智能提示等开发者非常需要的功能.而这…