Information Technology Notes “Introduction of Java Script” class 12

JavaScript is an interpreted computer programming language. It was originally implemented as part of web browsers so that client-side scripts could interact with the user, control the browser, communicate asynchronously, and alter the document contents. Nowadays, JavaScript has become very useful in both game development and the creation of desktop applications.

JavaScript was developed in 1995 by Brendan Eich, at Netscape, and first released with Netscape 2 early in 1996. It was initially called as LiveScript, but was renamed as JavaScript in order to capitalize the popularity of Sun Microsystem’s Java language. JavaScript’s use in applications outside of web pages also like in PDF documents, site-specific browsers, and desktop widgets and other useful applications.

JavaScript was formalized in the ECMAScript language standard and is primarily used as part of a web browser (client-side JavaScript). This enables programmatic access to computational objects within a host environment. JavaScript very quickly gained widespread success as a client-side scripting language for web pages. Microsoft introduced JavaScript support in its own web browser, Internet Explorer, in version 3.0, released in August 1996.


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