JavaScript

varClass =function(){ varKlass =function(){ This. init.apply ( This, arguments); }; //InitKlass.prototype.init =function(){}; returnKlass; }; varperson =NewClass (); Person.prototype.init=function(){ This. Name =

Maintainable code means: a consistent, readable, predictable look that looks like the same person writing a recorded named function expression (function fn () {}) He is the expression because the parentheses () are a grouping operator whose interior

The expression in the if () parenthesis in JavaScript is treated as a Boolean value. At this point, some conversion problems are involved.1. Special values undefined and null become false.2. The number 0 and nan become false.3. The empty string

JavaScript controls proportional scaling of pictures

1. Explicitly create regular expressions: var searchpattern=new RegExp (' +s '); The plus sign matches any one of the strings with one or more contiguous s.2. Methods forRegExp objects:test and exec The test method determines whether the

vardata = { "username": "Zhangsan", "Password": "12345690", "Code": "ABCD" }; varValidate ={rules: {}, config: {}, msg: [], check:function(data) {vark, rule, config, checker; Rule= This. Rules; Config= This. config; This.

Sleepy, sleep, and continue tomorrowjavascript-Authoritative Guide reading notes (1)

//constructor ModefunctionCar (name, logo) {//force the use of new, "This" point to the instance if(! ( This instanceofCar)) { return NewCar (name, logo); } This. Name =name; This. Logo =logo;}//Car.prototype is the original object,

If you send the JSON data to Mvc,how can receive them and parse them more simply?Can do it like this: Latestdata = []; $ ('. Save '). Click (function () { $ ('. Content tr '). Each (function () {

String.prototype.format = function (args)  {    var result =  this;    if  (arguments.length > 0)  {             if  (arguments.length == 1 && typeof   (args)  ==  "Object")  {             for  (Var key in args)  {                 if

8.1 Function Definitions:Variable declarations are advanced, but variable assignments do not advance　　function declaration Statements cannot appear in loops, conditional judgments, or try/catch/finally and with statements: 8.2 function calls

JavaScript is a dynamic language that must be mastered in Web projects, and JavaScript-based frameworks are largely inseparable from the use and rationale of the most basic JavaScript. This article is mainly to summarize the evil of the this

JS implementation for copying data to the clipboard -- ZeroClipboard (also solves IE compatibility issues)For general technical users, this is nothing, but for non-technical users, it will feel more troublesome. Therefore, from the perspective of

ExtJS learning ---------- Ext. DomHelper class learning (Instance) Specific instance (the instance result is in the Program) Ext. onReady (function () {// preparations Ext. create ('ext. panel. panel ', {title: 'domhelper-element generator use',

Three methods to cancel single-choice radio and three methods to select single-choice radio This article provides three methods to deselect radio. The sample code is as follows: This article depends on jQuery. The first is implemented by jQuery, the

Jquery method for obtaining the attribute values of subnodes and current nodes This section describes how to obtain the attribute values of subnodes and current nodes by jquery. 1 2 data management

JavaScript checks whether the native function checks whether the function is a native code. I often encounter a situation where I need to check whether a function is a native code. This is a very important part of the function test: whether the

CSS3 Transitions Attribute creates the Download button special effect of an animation, css3transitions The Download button of a website should attract the attention of readers as much as possible. This means that web designers should pay great

Background-position Usage Details, position usage Syntax: Background-position: length | lengthBackground-position: position | positionValid value: Length: percent | length value composed of floating-point numbers and unit identifiers. See length

Iframe adaptive heightIframe adaptive height. Currently, the most widely implemented method is to obtain the body height of the page loaded by iframe using JS. (Chrome may have a cross-origin error when testing the local html file. You can use IE to