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JavaScript (/ ˈ dʒ ɑː v ə s k r ɪ p t /), 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.
JavaScript is a high-level programming language that follows the ECMAScript standard. It was originally designed as a scripting language for websites but became widely adopted as a general-purpose programming language, and is currently the most popular programming language in use. [1]
Mar 5, 2024 · JavaScript documentation of core language features (pure ECMAScript, for the most part) includes the following: The JavaScript guide; The JavaScript reference; For more information about JavaScript specifications and related technologies, see JavaScript technologies overview.
Jun 22, 2023 · Where to find JavaScript information. The JavaScript documentation on MDN includes the following: Learn Web Development provides information for beginners and introduces basic concepts of programming and the Internet. JavaScript Guide (this guide) provides an overview about the JavaScript language and its objects.
4 days ago · JavaScript is a lightweight interpreted programming language. The web browser receives the JavaScript code in its original text form and runs the script from that.
Nov 15, 2023 · JavaScript is a general-purpose scripting language. The core language specification focuses on pure computational logic. It doesn't deal with any input/output — in fact, without extra runtime-level APIs (most notably console.log()), a JavaScript program's behavior is entirely unobservable.
Aug 8, 2022 · JavaScript was initially created as a browser-only language, but it is now used in many other environments as well. Today, JavaScript has a unique position as the most widely-adopted browser language, fully integrated with HTML/CSS. There are many languages that get “transpiled” to JavaScript and provide certain features.
4 days ago · Modern JavaScript Tutorial: simple, but detailed explanations with examples and tasks, including: closures, document and events, object oriented programming and more.
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 .
Why Study JavaScript? JavaScript is one of the 3 languages all web developers must learn: 1. HTML to define the content of web pages. 2. CSS to specify the layout of web pages. 3. JavaScript to program the behavior of web pages
