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JavaScript at Wikibooks. JavaScript ( / ˈdʒɑːvəskrɪpt / ), often abbreviated as JS, is a programming language and core technology of the Web, alongside HTML and CSS. 99% of websites use JavaScript on the client side for webpage behavior. [10] Web browsers have a dedicated JavaScript engine that executes the client code.
The syntax of JavaScript is the set of rules that define a correctly structured JavaScript program. The examples below make use of the log function of the console object present in most browsers for standard text output . The JavaScript standard library lacks an official standard text output function (with the exception of document.write ).
jQuery is a JavaScript library designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animations, and Ajax. [3] It is free, open-source software using the permissive MIT License. [4] As of August 2022, jQuery is used by 77% of the 10 million most popular websites. [5]
Influenced by. JavaScript and XML. Ajax (also AJAX / ˈeɪdʒæks /; short for " A synchronous J avaScript a nd X ML " or " A synchronous Ja vaScript transfer ( x -fer)" [1] [2]) is a set of web development techniques that uses various web technologies on the client-side to create asynchronous web applications. With Ajax, web applications can ...
JSON (JavaScript Object Notation, pronounced / ˈ dʒ eɪ s ən / or / ˈ dʒ eɪ ˌ s ɒ n /) is an open standard file format and data interchange format that uses human-readable text to store and transmit data objects consisting of attribute–value pairs and arrays (or other serializable values).
JSDoc is a markup language used to annotate JavaScript source code files. Using comments containing JSDoc, programmers can add documentation describing the application programming interface of the code they're creating. This is then processed, by various tools, to produce documentation in accessible formats like HTML and Rich Text Format.
Most modern code editors and IDEs allow you to set up a localhost server – eg. use atom-live-server in Atom, and Live Server in VS Code. WebStorm and PhpStorm have the feature built in, without requiring an extension. You can also use a third party program such as Node.js 's npx http-server command, or XAMPP.
ECMAScript (file format) ECMAScript ( / ˈɛkməskrɪpt /; ES) [1] is a standard for scripting languages, including JavaScript, JScript, and ActionScript. It is best known as a JavaScript standard intended to ensure the interoperability of web pages across different web browsers. [2] It is standardized by Ecma International in the document ECMA ...