JavaScript

Jointjs Modern HTML 5 is a JavaScript library that visualizes and interacts with charts and graphs. It can be used to create static diagrams, or, more importantly, fully interactive drawing tools and application builders. Jointjs can be used to

Last month, I did a share, detailing the Unicode character set and the JavaScript language support for it. Here is the transcript of this share. First, what is Unicode?Unicode comes from a very simple idea: to include all the characters of the

The data types in the Javascrip are divided into the original data type (primitive type) and the object data type (objects type).Raw data typeThe original data types are: Number, string, Boolean, null, undefined.Object data typeAn object data type

For the file download, can be said to be a very common topic, the front-end of many projects will have such a demand, such as the export of Highchart charts, online picture editing in the image preservation, online code editing code export and so on.

Let's take a look at the code of the previous uniform motion and fix a bug that will appear when the speed is changed. We've added two benchmarks for testing.styletype= "Text/css">#div1{width:100px;Height:100px;position:Absolute;background:Red;Top:50

　　The execution results are as follows:First Alert:A second alert:This is a surprising result, why is the first pop-up box showing undefined instead of 1?A variable that is defined directly under the script tag in a page is a global variable that is

Create DOM and load XML under IE var xmldoc = new ActiveXObject ("Microsoft.XMLDOM"); xmldoc.load (URL); Load XML file Xmldoc.loadxml ("");//load XML string xmldoc.documentelement//Get root element, ie support only Create DOM and load

VarThe following methods are commonly used in the conversion of such data to Chinese issues.1. Eval parsing or new Function ("' + str + ')" ()// "I am a Unicode encoding"2. Unescape parsing// "I am a Unicode encoding" C # Chinese and Unicode

javascript  does not have a map, but has a map function-_-!  do it yourself, clothed (function () {try{function directory () {this.key =  new array (); This.value = new array ();} Add Directory.prototype.add = function (key,value) {//key whether to

When using a URL for parameter passing, some Chinese name arguments or URL addresses are often passed, and conversion errors occur during background processing. In some pass-through pages use GB2312, and the Receive page uses UTF8, so that the

(This image is: 15 Beginner's Must-see JavaScript quick Tips)today's small series for our novice JavaScript small partners to introduce a simple programming language, better help you to learn it in depth, use it:JavaScript is a scripting language

form scripting (i) Basics of forms 1. Submit FormThe submit button is defined by using or setting its type attribute to submit, and the picture button is defined by setting the type attribute value to "image".Use the Preventdefault () method to

Xiaomi company JavaScript interview questions, Xiaomi javascript Interview Questions I, Copy codeThe Code is as follows:Define such a functionFunction repeat (func, times, wait ){}This function can return a new function, for exampleVar repeatedFun =

Recommended 24 popular and practical jQuery plug-ins and 24 jquery plug-ins Vanity Toolset Vanity toolset is a set of convenient UI tools that can help you quickly build slides, spotlights, placeholder, and hide related UIS. It has completed most of

Web development starts with learning JavaScript. One day I was asked what language I should learn to quickly increase my strengths in web development. My thoughts go back to college. At that time I used Pascal, Fortran, C, and assembly languages,

Easy creation of nodejs servers (2): Component Analysis of nodejs servers, Next to the previous section, let's analyze the Code: The http module that comes with the first line request (require) Node. js and assigns it to the http variable. Next, we

Easily create nodejs servers (6): Respond to nodejs servers We then rebuild the server so that the request processing program can return some meaningful information. Let's take a look at how to implement it: 1. Let the request processing program

The console. trace Method in node. js is used in node. js scenarios. Method description: Outputs the current call stack to the standard error stream. Syntax: Copy codeThe Code is as follows:Console. trace (label) Receiving parameters: Label Example:

Differences between the three-object operator in JS and the if else operator and the example, jselse Today I wrote a small demo of image carousel and used it to determine First try if elseThe Code is as follows: Copy codeThe Code is as follows:If (n>

Reasons and benefits of using & quot; return obj ==void 0 & quot; in javascript When I learned about underscore. js, I found that the following code often appears in the source code: if (context === void 0) return func;if (array == null) return void