JavaScript

Array.prototype.clearRepeat =function(){ varresult =[], obj= {}; for(vari = 0; I This. length; i++){ if(typeof( This[i] = = = = "Object"){ varobjname = "Object:"; for(varXinch This[i]) {objname+=x; ObjName+= This[i][x]; }

Js-can only be entered in Chinese and English2008-11-08 10:17Using the regular Expression object (REGEXP) in JS to judgeChinese^[\u0391-\uffe5]+$English^[a-za-z]+$Chinese and English/^[\u0391-\uffe5a-za-z]+$/JS Regular expression limit text box can

One. String manipulation1. Casevar s = "Hello"= s.touppercase ();" HELLO "g;" HELLO "g.tolowercase ();" HelloView Code2. Indexing/TruncationS.indexof (' o '); 4all.js:1 loading comments ... var l = "Hello World"; undefinedl.substring (0,5);" Hello

Hide the specified DOM element (pure JavaScript method) by clicking on the space

First, JavaScript variables1. Definition of variablesWhen defining variables, use the keyword var, followed by the variable name (that is, the identifier, if you do not know what the identifier is, can be viewed here), as follows var message; Define

As we all know, Jquerry has animate methods for the movement of DOM elements, and there are transition and transform in the CSS3. Using native JavaScript to control the movement of elements requires writing a lot of motion details and

form object form validation 1. Registry name: Password: Sex: male Women Date of birth: Hobby: <Input type= "checkbox" Name= "loves" value= ' soccer ' checked= "checked"/> Soccer reading Travel Games

When using JS, when the same event is defined for the child element and parent element, such as the onclick event is defined, and when the child element is clicked, the OnClick event of the parent element is also triggered. JS says the mechanism for

Null and undefined comparisonsNull is a JavaScript keyword that represents a non-object.Undefined indicates that there is no value, indicating that the value does not exist or is not initialized. Same point Different points

KeyCode 8 = BackSpace BackSpaceKeyCode 9 = Tab tabKeyCode = ClearKeyCode = EnterKeyCode = shift_lKeyCode = control_lKeyCode = alt_lKeyCode = PauseKeyCode = Caps_lockKeyCode = Escape escapeKeyCode = Space SpaceKeyCode = PriorKeyCode = NextKeyCode =

First, document.getElementById () Gets the element node by ID I was the first p I was the second p window.onload = function () { var str = document.getElementById ("P1"). InnerHTML;

Problem:The code works fine under Forefox and IE8, but the error is under IE6: Expected identifier, string or number If there are multiple options for a variable option, then we can separate it with commas, but the last option cannot have a

the scope of a variableTo understand closures, you must first understand the special variable scope of JavaScript.The scope of a variable is nothing more than two kinds: global variables and local variables.The special point of the JavaScript

Original link: http://www.adequatelygood.com/JavaScript-Scoping-and-Hoisting.htmlJavaScript scopes and Declaration elevationDo you know the value of alert after JavaScript is executed?1 var foo = 1; 2 function Bar () {3 if (! foo) {4 var

Recently been plagued by a bug for two days ~ I have released a new naserver (Path Analysis Service), but in the previous code it was found that the path could not be generated. After my debugging found no code and no error, and can return the

Data types for JavaScriptSimple data types String Number Boolean function Null Undefined Complex data types String Number Boolean Function Date Array Regexp Object Various

I. JavaScript for converting kanji to Unicode1. Conversion by means of a coded solution/**JS Unicode Encoding Conversion */var DecToHex = function (str) {var res=[];    for (Var i=0;i 2. Convert by Escape modevar DecToHex =function (s) {return

In some cases, we might use multiple JavaScript libraries in one page, because the $ identifier is used in multiple libraries, so we need a way to resolve the naming conflict, and the jquery Noconflict () method solves the problem well. jquery calls

Javascript: Right-click a special menu and right-click javascript On the Web end, you do not need to right-click a menu. Each browser also has its own right-click menu. However, for some special webpages, You need to right-click the menu to increase

Introduction to js function Programming Js function Programming The concept of function is to constantly use existing functions to combine new functions.Functional programming has five distinctive features:1. The function is the first citizen.The