ĭuring these formative years of the Web, web pages could only be static, lacking the capability for dynamic behavior after the page was loaded in the browser. The lead developers of Mosaic then founded the Netscape corporation, which released a more polished browser, Netscape Navigator, in 1994. Accessible to non-technical people, it played a prominent role in the rapid growth of the nascent World Wide Web.

The first popular web browser with a graphical user interface, Mosaic, was released in 1993. The most popular runtime system for this usage is Node.js.Īlthough Java and JavaScript are similar in name, syntax, and respective standard libraries, the two languages are distinct and differ greatly in design.

JavaScript engines were originally used only in web browsers, but are now core components of some servers and a variety of applications. In practice, the web browser or other runtime system provides JavaScript APIs for I/O. The ECMAScript standard does not include any input/output (I/O), such as networking, storage, or graphics facilities. It has application programming interfaces (APIs) for working with text, dates, regular expressions, standard data structures, and the Document Object Model (DOM). It is multi-paradigm, supporting event-driven, functional, and imperative programming styles. It has dynamic typing, prototype-based object-orientation, and first-class functions. JavaScript is a high-level, often just-in-time compiled language that conforms to the ECMAScript standard. All major web browsers have a dedicated JavaScript engine to execute the code on users' devices. As of 2022, 98% of websites use JavaScript on the client side for webpage behavior, often incorporating third-party libraries. JavaScript ( / ˈ dʒ ɑː v ə s k r ɪ p t/), often abbreviated as JS, is a programming language that is one of the core technologies of the World Wide Web, alongside HTML and CSS. Java, Scheme, Self, AWK, HyperTalk ĪctionScript, AssemblyScript, CoffeeScript, Dart, Haxe, JS++, Opa, TypeScript publications-and-standards /standards /ecma-262 /

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