JavaScript

In JavaScript, objects have no prototypes, and constructors have prototypes The meaning of the prototype: if the constructor has a prototype object A, the instance created by the constructor must be copied from a Copy Code code as follows:

IE Only's listening code [Ctrl + A All SELECT Note: If the need to introduce external JS need to refresh to perform] Ascii Code Table Ascii 0 {nulo, Sem Som} Ascii 1 Ascii 2 Ascii 3 Ascii 4 Ascii 5 Ascii 6 Ascii 7 Ascii 8

This is cool because it gives you the special effects of applying mouse-over events (mouseover) to table rows () only through CSS. However, the evil of IE, for: hover pseudo class at most only provides limited support, the degree of specific support

JS Calculator code: javascript simple calculator [Ctrl + A All SELECT Note: If the need to introduce external JS need to refresh to perform] Description JavaScript eval ()

Today there are a few asp.net with JavaScript tutorial articles. Now look at those JavaScript scripts that are not well written and overly complex. Now extract them and refactor them. before a： Copy Code code as follows: function

First look at the phenomenon: Copy Code code as follows: apply_and_call When the div is clicked, the pop-up box displays undefined. The reason is that when a DOM object responds to a click event, the

This article is divided into two parts, the upper part of the basic mode (fundamental patterns): Full exposure method, underline marking method and the use of closures, the lower level of advanced mode (Advanced patterns), how to implement static

2.8 Reference Types 1. Object class All classes in the ECMAScript are inherited by the object class. The object class has the following properties: Constructor: Reference (pointer) to the function that created the object, for the object class,

Firefox/chrome/opera has supported this feature from a version, but the IE series is not supported by IE9, so JavaScript is required to be compatible with browsers that do not support placeholder features. Popular Practice The common practice now

First, let's look at the array classification: From the subscript of an array into an indexed array, an associative array Copy Code code as follows: /* Index array, that is, an array that is usually called/ var ary1 = [1,3,5,8]; Array

• Simulate block level scopes As we all know there is no block-level scope in JavaScript, we can simulate block-level scopes by using closures, see the following example: Copy Code code as follows: (function () { for (var i = 0; i

The previous article has written a tool function $class, this article consummates below. Implement the following features 1, inheriting 2, the private property of the parent class is not inherited when the subclass inherits the parent class

Usually in the following statement structure to determine the true and false If branch statement While Loop statement For the second statement in the Such as Copy Code code as follows: if (boo) { Do something } while (Boo)

Once thought in the JavaScript world, all methods are public, can not really technically define a private method, today again found: I was wrong! Copy Code code as follows: var person = function (name,sex) { THIS.name = name; This.sex =

Most of us have used JavaScript, and in recent years the popularity of JavaScript frameworks has made JavaScript more magical and easy. "Anonymous (anonymous) function?" I don't know what it is, but it seems to be the same as what I wrote. ”You may

Shuffle algorithm is our common random problem, in playing games, random sorting often encounter. It can be abstracted like this: get an array of random sequences of all the natural numbers within a m. In Baidu search "Shuffle Algorithm", the first

On touch-screen devices, some of the more basic gestures need to be encapsulated two times to achieve the touching event.Zepto is a class library with a higher usage rate on the mobile end, but some of the events that the Touch module simulates have

Anyway, as long as the JavaScript error after the refresh is no longer, the user can solve the problem by refreshing, the browser will not crash, when it did not happen well. This assumption was established before the single Page App was popular.

In JavaScript, a function is a first-class citizen, a function in JavaScript is a data type, not as a C # or other descriptive language just as a module to use. Functions have four invocation modes: function invocation form, method invocation form,

JavaScript to add elements to the array is a very simple question, JavaScript itself provides a large number of such functions, we can use the JS function to quickly add elements to the array, this article on JavaScript to do array Append method to