JavaScript

Two ways to define a regular expression object (REGEXP): 1 var pattern =/s$/; 2 var pattern = new RegExp ("s$"); The system learns two references to regular expressions: 1) Programming Perl by Larry Wall et al. (O ' Reilly). 2) Mastering

JavaScript array; An array: 01. Display method: 01.function selvalue(v){ 02. var arrays = colors[v]; 03. for(description in arrays) { 04. document.getElementById(description+"color").value = arrays[description]; 05. } 06.} Effect, run the

Overview function is the basis of modular programming, writing complex AJAX applications, you must have a more in-depth understanding of the function. Functions in JavaScript are different from other languages, and each function is maintained and

Write in the front: always want to systematically summarize the knowledge of JavaScript, like the language also love the language. In the future want to engage in front-end work, in advance to comb their knowledge. The knowledge of the DOM was

Traditionally, loading JavaScript files is the use of This code, in turn, loads 4 JavaScript files: script1.js, Script2-a.js, Script2-b.js, and Script3.js. After loading the first three files, run two functions

Binding eventsvar　addEvent　=　function(　obj,　type,　fn　)　{ 　　if　(obj.addEventListener) 　　　　obj.addEventListener(　type,　fn,　false　); 　　else　if　(obj.attachEvent)　{ 　　　　obj["e"+type+fn]　=　fn; 　　　　obj.attachEvent(　"on"+type,　function()　{

The first part of this series describes how to "encapsulate" data and methods, and how to generate instances from a prototype object. Today we are going to introduce five methods of "inheritance" between objects. For example, there is now a

Sometimes, we want to achieve a through JS the effect of a new tab, at this time we think of the window.open method implementation. So how exactly should window.open be used? We know that window.open can open a new window or tab (which is usually

1. Refreshing Web pages without prompting We have not found that some pages, refresh, will pop up a prompt window, click "OK" will refresh. And some pages do not prompt, not pop-up prompts the window, directly refreshed. If the page does not have a

The emphasis of the phrase "everything is an object" is how to understand the concept of "object". Of course, not all of them are objects, and value types are not objects. First, let's look at a commonly used function--typeof () in JavaScript.

Problem Description: In England the currency are made up of pound,, and Pence, p, and there are eight coins at general circulation: 1p, 2p, 5p, 10p, 20p, 50p, 1 (100p) and 2 (200p). It is possible to make 2 in the following way: One + 150p +

When you make a SharePoint order, you often encounter problems with the limitations of your development tools, such as the usual companies restricting access to servers and deployment, and many of the developments are only available on the client

/* Dataparser Singleton, converts character delimited strings into arrays. * //* Now using True private methods. * //Giantcorp.dataparser = (function () { //private property var Whitespaceregex =/\s+/; Private method

A problem was encountered today in development: how do I replace the SRC values of all the IMG tags contained in an HTML string? The solution that comes to mind is: Content.replace (/]*src=[']] ([^ ' "]+) [^>]*>/gi, function (match) { Console.log

In actual projects, we usually use constructors to create an object and then add some common methods to its prototype object. Finally either instantiate the object directly, or use it as the parent class, and then declare an object that inherits the

This in JavaScript is always confusing and should be one of JS's well-known pits. Personally also feel JS in this is not a good design, due to this late binding feature, it can be global object, current object, or ... Some people even use this

Using the browser's internal object system enables you to interact with HTML documents. Its role is to package the relevant elements, provided to the program designers to use, thereby reducing the labor of programmers, improve the ability to design

The JavaScript string has a IndexOf method that returns the position of the character in the specified string, which is useful, and this article describes how to add a similar method to the JavaScript array.

The first time you found the Replace () method in JavaScript is to use the Str.replace ("-", "!") directly. Only the first matching character will be replaced. and Str.replace (/-/g, "!") You can replace all the matching characters (G is the global

The splice function method in JavaScript is to remove one or more elements from an array, and if necessary, insert a new element at the position of the removed element and return the removed element. 　　arrayObj.splice( start, deleteCount, [item1[,