JavaScript

Some time ago, my colleagues complained about the. data () method in jQuery in the group:XXX (NNNNNNN) 15:11:34Alert ($ ('# A'). data ('xxx'); // 123Unreliable data methodXXX (NNNNNNN) 15:13:17Honestly, attr ('data-XXX') has carefully studied the

You may have encountered this situation, that is, the onload event in the body may be affected after window. onload is used in js Code. You can write all the data in the body or in window. onload, but this is not very convenient. Sometimes we need

All languages have their own special features. For JavaScript, using var can declare any type of variables. This script language looks very simple, however, to write elegant code, you need to constantly accumulate experience. This article lists

Copy codeThe Code is as follows:Function toDesktop (sUrl, sName ){Try {Var WshShell = new ActiveXObject ("WScript. Shell ");Var oUrlLink = WshShell. CreateShortcut (WshShell. SpecialFolders ("Desktop") + "\" + sName + ". url ");OUrlLink. TargetPath =

This is the second reading note of Three. js source code.Core: Object3D Object3D seems to be Three. the most important class in the js framework. A considerable number of other classes are inherited from the Object3D class, such as the scenario

As long as you have written some JS Code, a simple var will be done. What happened to the JS compiler? Let's start with the code step by step.Copy codeThe Code is as follows:X = 1;Alert (x );Var y = function (){Alert (x );Var x = 2;Alert (x );}Y ();

In this column, I practiced table operations, including tBodies, rows, and cells, and the sorting method of Arrays: sort.First run the Code:Copy codeThe Code is as follows: table sorting 2 bbb 5 eee 3 ccc 4 ddd 1 aaa The

 OffsetTop refers to the position of the element above or upper-layer control, which is an integer in pixels.OffsetLeft refers to the position of the element between the left side and the upper-layer control. It is an integer in pixels.OffsetWidth

Initialization (element id, which indicates the top left, top right, top right, left, middle, right, bottom left, bottom right, and bottom right with 123456789 respectively.The impact position. The nine numbers represent nine locations, which are in

back to the top: weeping clown clown Q group: 150508281 top 1 top 2 top 3 top 4 top 5 top 6 by foot home @ weeping clown [Ctrl + A select all Note: If you need to introduce external Js, You need to refresh it to execute]

Nowadays, web applications are becoming more and more complex and need to respond to a variety of user-triggered events. Therefore, it is inevitable to add event listening functions to dom elements on our html pages.We know that there are three

Put the following code in the global js file:Js CodeCopy codeThe Code is as follows:/*** Delete the specified subscript or object in the array.*/Array. prototype. remove = function (obj ){For (var I = 0; I Var temp = this [I];If (! IsNaN (obj

Use Javascript to get the first two digits of the float decimal point. For example, 22.127456 is used to get 22.13. How can this problem be solved?1. the most stupid way Copy codeThe Code is as follows:Function get (){Var s = 22.127456 + "";Var str =

Recently I have been studying webpage special effects. I saw the folding menu on the qq interface, so I came up with an idea. I wrote a similar one myself. I checked it online and found that there are already many similar menu effects, no matter how

upload... upload [Ctrl + A select all Note: If you need to introduce external Js, You need to refresh it to execute]1. When uploading images in old browsers (such as IE9 or earlier, fileAPI is not supported, and XMLHttprequest level2 can

C # decoding function System. Web. HttpUtility. UrlDecode (s) corresponding to escape in js // pay attention to EncodingNotes:1. HttpUtility. UrlEncode and HttpUtility. UrlDecode are static methods, while Server. UrlEncode and Server. UrlDecode are

Problem: How does the iframe scroll bar appear below by default? It is a chat tool with a large amount of data. Each time you refresh the page, the scroll up and down appears at the top by default. You need to drop down the page to view the chat

Many websites have the result of returning to the top. This article describes how to use jquery to return to the top button.First, add the following html elements to the top: return to the top where the label points to the top of the anchor,

Array. prototype. push Push adds an item to the end of the array and updates the length to return the array length.What if the Object uses push?Look at the following code. obj works like an array. Length is automatically updated.Copy codeThe Code is

Source javascript language essence. This is not the source code in the book.Js function calls are free of charge. The extra parameters are this and arguments. Arguments is a parameter array. It is not a real array, but the length can be obtained