Action Script and JScript were other well-known implementations of ECMAScript.The release of ECMAScript 2 in June 1998 continued the standards process cycle, conforming some modifications to the ISO/IEC 16262 international standard.Marc Andreessen, the founder of the company believed that HTML needed a "glue language" that was easy to use by Web designers and part-time programmers to assemble components such as images and plugins, where the code could be written directly in the Web page markup.In 1995, Netscape Communications recruited Brendan Eich with the goal of embedding the Scheme programming language into its Netscape Navigator.In 1993, the National Center for Supercomputing Applications (NCSA), a unit of the University of Illinois at Urbana-Champaign, released NCSA Mosaic, the first popular graphical Web browser, which played an important part in expanding the growth of the nascent World Wide Web.In 1994, a company called Mosaic Communications was founded in Mountain View, California and employed many of the original NCSA Mosaic authors to create Mosaic Netscape.Microsoft initially participated and implemented some proposals in their JScript . Over time it was clear though that Microsoft had no intention of cooperating or implementing proper Java Script in Internet Explorer, even though they had no competing proposal and they had a partial (and diverged at this point) implementation on the . So by 2003, the original ECMAScript 4 work was mothballed.
Netscape Communications realized that the Web needed to become more dynamic.
In November 1996, Netscape submitted Java Script to ECMA International to carve out a standard specification, which other browser vendors could then implement based on the work done at Netscape.
This led to the official release of the language specification ECMAScript published in the first edition of the ECMA-262 standard in June 1997, with Java Script being the most well known of the implementations.
Alongside HTML and CSS, Java Script is one of the three core technologies of the World Wide Web.
and all major web browsers have a dedicated Java Script engine to execute it.