JavaScript

1. Be sure to use the var keyword when assigning a variable for the first timeVariables are not declared and are directly assignable, and as a new global variable by default, avoid using global variables as much as possible.2, use = = = Replace =

Javascript and CSS3 achieve progress bar effect A: css2 attribute clip implementation page progress bar; Before we do this, let's introduce the clip property, because this property is seldom used in css2.1, so we need to get to know it;Browser

Original: JavaScript Array objectOne, create an array objectThe array of JavaScript supports support for any data type, and does not specify that the array type can only store this type, as java,c#.We can use the following three methods to create

The Math object is an intrinsic object of JavaScript, and its purpose is to perform common arithmetic tasks. This object is not used like a Date,array object New keyword to get the object, but direct Math. [{Property|method}], if an attempt to

object-oriented and object-basedAlmost every developer has a development experience with object-oriented languages such as C + +, C #, and Java. In the traditional object-oriented language, there are two very important concepts-classes and instances.

In the first chapter, we use constructors and prototypes to implement classes and inheritance in the world of JavaScript, but there are many problems. In this chapter we will analyze each of these issues and give a solution.Note: The implementation

Each language has its own special place, for JavaScript, using VAR can declare any type of variable, the script language seems simple, but want to write elegant code is need to accumulate experience. This article makes a list of seven details that

Original: JavaScript Tips & notationJavaScript tips:1 "State machine"var state = function () {this.count = 0; This.fun = null; This.nowcount = 0; }; State.prototype = {Load:function

I've been busy with business requirements lately and haven't been blogging for a long time. A little bit of time today, looking at some of the recent project's front-end code, see the Web color conversion function, suddenly think that when we do

Common methods for array manipulation in JavaScript 1. Detecting arrays1) detects if the object is an array, using the instanceof operatorif (value instanceof Array) {// perform certain actions on array}2) Gets the type of the object, compares

JS in the Closed window Method Window.close () on IE can be normal action, and in Firefox and Chrome can not action.(At that time, on the Chrome35.0 is still possible, Chrome36.0 can not move the JS in the method of closing the window window.close ()

Call () method in Javascript, javascriptcall On Mozilla's official website, the following is an introduction to call:Copy codeThe Code is as follows:The call () method calls a function or method when a specified this value and several specified

CSS3 rounded corner, shadow, transparent, and css3 rounded corner shadow There are many methods for CSS to achieve rounded corners, shadows, and transparency. The traditional methods are complicated and it is much easier to use CSS3. Although

Multiple implementation version instances of the observer mode in the Javascript Design Mode This article mainly introduces multiple implementation version instances of the observer mode of Javascript design mode. This article provides three

Summary of common JavaScript scripts (III) and summary of javascript scripts Extended String concatenation through Arrays can easily cause performance problems Copy codeThe Code is as follows:Function StringBuffer (){This. _ strings _ = new Array ();

Detailed description of attribute descriptors in ECMAScript 5 and ecmascript Attribute descriptor is a new concept in es5. its function is to add more control over the attributes of an object. Object. defineProperty To study attribute descriptors,

JQuery implements DIV layer contraction and expansion, and jquerydiv layer Expansion This article describes how jQuery implements DIV layer contraction and expansion. Share it with you for your reference. The specific implementation method is as

Summary of Event object attributes in Jquery, jqueryevent The JS Event object is an object that is passed to the Event processing function when an Event is triggered. This object contains the basic information for triggering the Event. Such as the

Js-compatible with IE, FF, Chrome, Opera, and Safari music players, chromesafari This article describes how to implement JavaScript music players compatible with IE, FF, Chrome, Opera, and Safari. Share it with you for your reference. The specific

Javascript Object-Oriented Programming (1), javascript object-oriented The description in the comment is very detailed, so there is not much nonsense here, and you can directly go to the Code: Next: This article is here first, and we will continue