JavaScript

Code Source:http://www.ido321.com/914.htmlCode Source:http://dmitry.baranovskiy.com/post/91403200Pure personal understanding, Welcome to the Great God,1.1 if inch window)) {23 var a = 1; 4 5 }67 alert (a); // undefinedThere is

A string that is known to be #####, now needs to replace the # of the even position with &.function Replacedemo () { var s = "1#2#3#4#5#"; var regex =/#/g; var index = 1; S=s.replace (regex,function() {index++; Return index%2?

Divides one thing entire to many objects;Like perspectives, which rightly gazed uponShow Nothing but confusion ...-william Shakespeare, the tragedy of King Richard the SecondInheritance is a important topic in the most programming languages.In the

JS in the function of the process is not just a simple local variable overrides global variables, and functions inside the declaration of the situation. Like what: JavaScript about local variables and global variables

The first thing to be clear is that the constructor in JavaScript does not need to have a return value, which is similar to Java. It can be considered that the most significant difference between a constructor and a normal function is that there is

The declaration of the JS function.The format of the declaring function is as follows:Function name (argument list) {//functions statement; return value;}See the specific function declaration.1. Common functions2. Functions with ParametersIt is

1. Context-specific snapshot technologyWhat is context (contexts)? is actually the JS application's operating environment, avoids the application modification mutual influence, for example a page JS modifies the built-in object method ToString,

I'd like to use Ajax for all the usual code like this:hereBut what is the meaning of void (0) here?In JavaScript, Void is an operator that specifies that an expression is evaluated but does not return a value.The void operator uses the following

The relationship between the function scope, the calling object, and the closure of Javascript is subtle, and there are a lot of articles about them, but I don't know why many novices are hard to understand. I will try to express my own

This is a very simple example of what a few lines of code can do after JavaScript,But for some people who have not been in touch with JavaScript, almost a big project, and then on the Internet to search for code, and then in the vast HTML code to

Array de-duplication is a common requirement, we temporarily consider the same type of array to repeat. It is mainly to clarify the thinking and consider the performance. The following methods, basic online, here is simply a summary.Ideas:

6.1 Understanding Objectsvar person = new Object ();Person.name = "Nicholas";person.age = 29;Person.job = "Software Engineer";Person.sayname = function () {alert (this.name);};Person.sayname ();6.1.1 Property Type 1. Data properties

1. Basic object: Number,string,date,array,error,regexp,math,boolean PS: I basically use Java to write code, often write number n = new number (2) such as two code, time JavaScript is weak type, unified use Var to define, var n = new Number (2) A

Bootstrap (conversion), bootstrapBootstrap With the increasing maturity of the Internet and the increasing use of mobile devices to access the Internet, the work of Web designers and Web developers has become increasingly complex. Ten years ago,

Deep CSS attributes (9): z-index, deep css attributes z-index If you are not a beginner in csser, you must have a general understanding of the usage of z-index, z-index can control the stacking order of positioning elements perpendicular to the

Implementation of Arcgis for Javascript Statistical Chart First, cut a screenshot to show you the effect: Initialization status Enlarged status VcD4KPHA + pgltzybzcm9 "http://www.2cto.com/uploadfile/Collfiles/20141020/20141020084653175.png"

Java programmer's JavaScript learning notes (3 -- this/call/apply)We plan to complete this note in the following order: Concept. Copy and inherit attributes. This/call/apply. Closure/getter/setter. Prototype. Object-Oriented Simulation. JQuery

Styling Checkbox and stylingcheckbox Check box Checkbox is a common control for Web applications, which can be seen everywhere. The native check box control is generally like the following: Selected statusUnselected status This depends on the

Discuss the performance of js String Array splicing, js String Array Splicing We know that in js, string connection is one of the operations with the lowest performance.For example: Copy codeThe Code is as follows:Var text = "Hello ";Text + = "World!

Javascript to get the lunar date code of the current date JavaScript code ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56