JavaScript

ECMAScript1. Syntax2. Variables: Only use the VAR definition, if the contents of the function using the var definition, then it is a local variable, if not using Var it is a global. Weak type!3. Data type: Raw data type (Undefined/null/string/number/

JavaScript event handlers 1, normal event handlersfunction ShowMessage () {alert ("clicked");}2, DOMO level Event processing program//old method var Btn=document.getelementbyid ("MyBtn"); The DOM extension method supports mainstream browsers,

Learn by object-oriented and prototype in the previous section.We know how to create a class that contains the privatized properties and methods of a class, public properties and methods, static properties, and methods. Think about it a little bit

1, first to a section of code:Console.log (Function);//function function () {[native code]}Console.log (Object);//function Object () {[native code]}Console.log (function.prototype);//function () {}Console.log (Object.prototype);//Object

Requirements: A user list data, if the corresponding list of data is greater than 10, every 10 saved to a two-dimensional array, less than 10 are still placed in the tail of the two-dimensional arrayUseful: analog paging, or partial refreshvarobj=[

1. Why encapsulation and information hidingFriends who have done programming know the word "coupling". In fact, the effect of encapsulation is to understand the coupling, so that there is not too many links between classes and classes, to prevent

First, IntroductionGoogle Chrome and CEF use V8javascript engine as the content of the JavaScript implementation. Each window in the browser has its own JS context that provides scope and safe execution of the JS code in the window. CEF exposes a

In the work encountered the problem of the depth of the copy, so detailed summary:Deep copy and shallow copy are only for complex objects such as Object, Array. Simply put, a shallow copy replicates only the properties of one layer of objects, while

Objective This This is detailed in JavaScript This detailed　　How many cases does this point to? How is human control?"Who calls This,this point to who!!" 】"This point, do not care where this is written!! Only care about the function

Translated from: http://www.adequatelygood.com/JavaScript-Scoping-and-Hoisting.htmlDo you know what the result is if the following code executes?var foo = 1; function Bar () { if(! Foo) { var foo = ten; } Alert (foo);} Bar ();The result

Ajax pros and cons JSON and JSONP differences Provincial linkage Select All array de-weight:How do I eliminate duplicate elements in an array?Method One:var arr1 =[1,2,2,2,3,3,3,4,5,6], arr2 = []; For (0) {Arr2.push (arr1[i]);}} //1,2,3,4,5,

Javascript countdown time difference, javascript Time Difference Examples of this article share the implementation code of js countdown time difference for your reference. The details are as follows: current system time display time

How to Implement the Copy command of custom commands in AngularJS This article describes how to copy commands for custom commands of AngularJS. We will share this with you for your reference. The details are as follows:

Examples of asynchronous encapsulation of the applet wx. request method are described in detail, and the applet wx. request Wx-promise-request is an asynchronous encapsulation of the applet wx. request Method. Solve the problem Support Promise

Angularjs encapsulates $ http as the factory method, angularjsfactory Angularjs has its own encapsulated ajax service $ http. Because it is used to jQuery's ajax, it encapsulates angularjs's $ http by itself. The Code is as

This article mainly introduces the use of the jQuerysimplePage + AJAXplus paging plug-in, and analyzes jQuery's specific skills for implementing the paging plug-in based on extended by using examples, for more information about jQuery simplePage +

This article mainly introduces the js Code for getting the lunar calendar (lunar calendar) date in detail, which has some reference value, interested friends can refer to this article to share with you a piece of key code for displaying the lunar

This article mainly introduces the basic implementation method of the JavaScript template engine and explains how to use function objects to write simple templates step by step. If you need a template, you can refer to the template below to separate

JSON is a JavaScript native format, which means that JSON data processing in JavaScript does not require any special APIs or toolkit. Next, let's introduce how to use JSON data in JavaScript, if you are interested, learn that JSON is a JavaScript

During project development, we often need some algorithms about javascript arrays, such as array deduplication, array intersection, array disruption, and so on. Today, I will share my summary algorithms with you. Today, I will take some time to