JavaScript

The JavaScript language itself does not provide a class, and there is no class inheritance mechanism for other languages, its inheritance is implemented through the object's prototype, but this does not meet the requirements of the COCOS2D-JS engine.

This book is not for beginners, as it is said in the preface. Need a certain foundation, and have a certain coding practice, in order to well understand the content of the book.学习一门编程语言，需要熟悉它的语法、形式和结构，这样才会编写合法的、符合语义的、具有意义和行为正确的程序。The purpose of this

xTable of Contents [1] variable [2] function [3] before the first wordIt is generally assumed that JavaScript code executes from the top to the next line at execution time. But this is not exactly true, mainly because of the existence of a

xTable of Contents [1] lexical [2] dynamic front wordsMost of the time, the main reason we are confused about scopes is whether we should make variable lookups in terms of the nesting order of function locations or in the order in which functions

The XMLHttpRequest object (also known as the XMLHTTP object in Internet Explorer) are at the core of today's most exciting AJAX Web applications. But actually writing the client Web applications that with this object can be tricky given restrictions

The Eval function is more than just a function. Most functions only access the scope in which they are defined, but not the scope (lexical scopes) beyond.The Eval function has the ability to access the entire scope when it is called.When compiler

function definition and invocationDefine a function, in JavaScript, to define the function in the following way:function ABS (x) {if (x >=0) {return x;}else{Return-x;}}The above definition of the ABS () function is as follows:function indicates that

First, shallow cloning1. Cloning of basic data type (assigned value)var a = 1; var b =//1//1a = 2//2 // 1When you assign a value to another variable, the value of that variable is not affected when it is changed.2. Array cloningIf we take the basic

JavaScript for...in statementsThe for...in statement is used to loop an array or an object's properties.The code for the for ... in Loop executes once for each time, and the elements of the array or the properties of the object are manipulated once.

Regular Expressions (recommended in syntax) and regular expression syntax Constructor of a regular expression Construct matching Character X characters x\ Backslash character\ 0n CHARACTER n with an octal value of 0 (0 \ 0nn: nn (0 \ 0mnn: mnn (0 \

Understanding of Javascript Object literal, javascript Object literal Output Method and definition benefit of object literal volume 1. There are two ways to output the object literal: traditional '. ', And the array method,When output in array mode,

Methods for outputting information in JavaScript (information confirmation box-Prompt input box-Document Stream output), and javascript input box The method for outputting information in js is as follows: 1. Document Stream

Talking about JavaScript standard objects and javascript objects In the JavaScript world, everything is an object. However, some objects are not the same as other objects. To differentiate object types, we usetypeofOperator to get the object type.

Examples show how to use native JavaScript to process AJAX requests. Examples show ajax Ajax is short for Asynchronous JavaScript and XML, and is a mechanism for updating a part of a page. It gives you the power to update a part of the page after

Six Methods of JS definition classes are described in detail, and six methods of js definition are described in detail. In front-end development, you often need to define JS classes. In JavaScript, there are several ways to define classes. What are

Fully parse the Router routing in the Backbone. js framework of JavaScript and the javascript routing framework The Router in Backbone acts as a route and controls the URL direction. It takes effect when the # tag is used in the URL.Defining a

Questions about image definition and image definition Today, I tested a BUG that I suggested to modify, saying that the icons in the title bar are not too clear, There is a school logo for South Polytechnic in the title bar, because the overall

Recommended forEach, $. each, and map methods in JS, foreach. each ForEach is the most basic of the new Array method in ecma5. it is traversal and loop. For example: [1, 2, 3, 4]. forEach (alert ); Equivalent to the for loop below var array = [1, 2,

Mysterious shadow-dom analysis and shadow-dom Analysis Many people may be unfamiliar with shadow-dom. But we must have met it. This article will give a brief introduction.shadow-dom. Enter the text below. What is shadow-dom? As the name

Bootstrap Metronic fully responsive management template learning notes, bootstrapmetronic Learn how to use the Bootstrap Metronic fully responsive management template. The specific content is as follows: 1. Introduction Bootstrap MetronicIs an