JavaScript

Reference type Reference types are mainly: Object type, Array type, Date type, REGEXP type, Function type, and so on. When using reference types, you need to generate an object (instance) from them. That is, the reference type is the equivalent of

In the process of writing a JS program, you may often need to judge the type of an object, for example, you write a function, you need to judge different types of parameters to write different code.First you might think of the typeof operator, and

Objective: Contact with JS since, has not been a good study of a JS book; From today onwards, I will start to learn, organize and share My learning process JS code. In the future published code does not mean that all belong to the original, but many

A reference to the object-oriented nature of JavaScript.This is a summary of my learning about object-oriented features in JavaScript. It is helpful to understand JavaScript oo with a friend who has experience in object-oriented design in other

MouseDown Events and MouseUp events As you know, the combination of the MouseDown event and the MouseUp event is the Click event, but if you press the mouse on the link and move outside the link to release the mouse, then only the moused The own

Requirements Analysis: In doing upload pictures, if you do not limit the size of the upload picture, the consequences are very serious. So how can we solve a thorny problem? There are two ways of doing this: 1) Background processing: That is, Ajax

dynamically commenting out HTML code with JavaScript-51windows.net 1& lt;/td> 2 34 ; SCRIPT language= "JavaScript" > 5 6 & lt;tr> 7 8 you didn't see 34 cells, because he used JavaScript to comment out, how to do? Look at the

This is a special keyword JavaScript, the use of a wide range of ways of flexibility to lay it strong, but at the same time doomed its difficult to use . I was very dizzy when I first started to learn, and I looked for a lot of information in order

JavaScript Regular expression usage: Copy Code code as follows: function Checkreg (myreg,mytext) { if (Myreg.test (MyText) { Alert ("OK"); return true; } Else { return false; } } Another way of writing

In previous lessons, we learned about the various operations of text and strings, and today we focus on two different types of data: images and objects. After learning this lesson, you will know how to: Use JavaScript to speed up image

How to use: Strobj.indexof (str,startindex[optional]) Program code Where Strobj is a required option. A String object or text. STR is a must option. The substring to find in the string object. startindex is optional. The integer value indicates

Using cookies we already know that there is a cookie attribute in the Document object. But what is a Cookie? "Some Web sites store information in very small text files on your hard disk, which is called cookies." "--msie help. In general, cookies

Instance Copy Code code as follows: Instance Imitation RTrim: Copy Code code as follows: Instance The code and test code are as follows: Copy Code code as follows: The

In JavaScript, call, apply, and bind are the three methods of a function object, and this article will understand three methods in more detail with the application of several scenarios. Call () The call () method invokes a function or method under

Backbone provides a model (models), a collection (collections), a view (views) structure for a complex JavaScript application. Where the model is used to bind key-value data and custom events; a rich API with enumerable functions; Views can declare

Learning causes Once in a stroll v2ex, encountered such a post.Mathematics completely back to the teacher, want to learn some basic mathematics, probably high school degree, what book recommended?Post the landlord University does not have a high

Have you ever been in a situation where you wrote a function with no parameters. function Showuserinfo () { alert ("Hello!)" I am Xiao Ming. "); } function Showuserinfo () { alert ("Hello!)" I am Xiao Ming. "); } Call:

A. Overview1. Output tool: document.write ()---can be html Alert ()---string Prompt (Text,defaulttext)Text---optional. The plain text to display in the dialog box rather than the HTML-formatted text.DefaultText---Optional. The default input text.

Date Createdthe Date object is used to process dates and times.You can define a Date object by using the New keyword. The following code defines a Date object named MyDate:There are four ways of initializing the date: New Date ()//current

Javascript/css/dom Foundation 　 　　 Lesson No. 0-Content Overview 　　 　　 1th Lesson-JavaScript Background Knowledge 　　 　　 Lesson 2nd-JavaScript Basics 　　 　　 Lesson 3rd-CSS Basics 　　 　　 Lesson 4th-CSS Advanced 　　 　　 Lesson 5th-dom Model