JavaScript

1: Event-driven1) Event : The so-called event is JS detected by the user's operation or the page of some behavior (how to happen)2) Event source object: The element that raised the event. (who is happening to whom)3) event handler: the program or

1:bom (Browser Object Model) concept The Window object is the core of all objects in the BOM.2:window attribute (less used)Self:self represents himself, the equivalent of window.window.self; Point to itself windowParent: Returns the parents

Implementation of the queueQueue class function Deque () {this.datastore = []; This.enqueuefront = Enqueuefront; This.enqueueback = Enqueueback; This.dequeuefront = Dequeuefront; This.dequeueback = Dequeueback; This.front = Front;

With the development of JavaScript itself, more and more people are beginning to prefer to use native javascript instead of various libraries, many of whom emit the voice of native JavaScript instead of JQuery. It's not a bad thing, but it's not

1. The introduction of two ways : directly in the tag line JS, the body at the bottom of the introduction.2.5 Types of variables : number,string,boolean,null,undefined and a special type: Object3. Variable naming : You cannot start with a number,

In general, the JS language is the façade to the object programming language, the concept of objects almost throughout the whole JS learning.Object　Two ways to create objects: (to generate an object instance you must call the constructor)1. var obj =

Data type1. StringIf you want to wrap a string that contains double quotation marks in double quotes, you must escape the double quotes in the string with a backslash: var height = "About 5 ' 10\" Tall "; It is important to note that backslashes

Usage of Document.execcommand () in JavaScriptCombined reprint:Reprint Source 1 Reprint Source 2The Document.execcommand () method handles HTML data often in the following syntax format:Document.execcommand (scommand[, interactive mode, dynamic

JavaScript, as the most common literal-translation scripting language, has been widely used in WEB application development. In order to improve the performance of Web applications, it is a good choice to start with the JavaScript performance

How does a applet obtain openid and user information? How does a applet obtain openid and user information? 1. Obtain the openid 1.1 get code Call the interface to obtain the login credential (code) in exchange for the user's login status

CSS id selector and cssid Selector The id selector can match element objects with specified IDs. Note: In the same document, IDs are unique; otherwise, problems may occur. The id selector is defined. For example: # Ant {color: red ;} Set the

JS implements collision detection method analysis, and js implements Collision Detection This article describes how to implement Collision Detection in JavaScript. We will share this with you for your reference. The details are as follows: A simple

Deeply understand the use of data deconstruct in ES6, and deeply understand es6 deconstruct Object deconstruct The object deconstruct syntax uses the object literal volume on the left side of the value assignment statement. Let node = {type: true,

Basic CSS knowledge (color, pseudo class, Box Model), css 6, Set the color unit L normal English word {color: attribute value red ;} This method is simple and convenient. However, different colors may be displayed in different browsers. * Primary

How to draw lines between two points in js This article describes how to draw lines between two points in JavaScript. Share it with you for your reference. The specific analysis is as follows: I have been bored recently. I have been thinking about

Analysis on the Application of JavaScript bitwise operators Next, let's talk about the bit operations in js (also applicable to other languages) based on your own cognition. If there are any errors, please correct me. Most languages provide bitwise

Jquery countdown code for sending verification codes on mobile phones This article mainly introduces jquery's countdown code for sending verification codes on mobile phones. For more information, see The Code is as follows: Var wait = 60; //

Simple tutorial on using Memcached in java This article mainly records some basic usage and simple Monitor of Memcached. Memcached is used by many large companies as a high-concurrency memory Cached system. Recently, it has been used for projects

Chinese characters in JS files are displayed as garbled characters on the webpage. solution: JS Code Conversion, this sentence itself is a sentence with double meanings. It is usually understood as code that can be converted into a JS file. However,

JavaScript library, JavaScriptJavaScript library-jQuery, Prototype, and MooTools. JavaScript framework (Library) JavaScript advanced programming (especially complex processing of browser differences) is usually difficult and time-consuming. To cope