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Netscape Communications then decided that the scripting language they wanted to create would complement Java and should have a similar syntax, which excluded adopting other languages such as Perl, Python, TCL, or Scheme.To defend the idea of Java Script against competing proposals, the company needed a prototype. Although it was developed under the name Mocha, the language was officially called Live Script when it first shipped in beta releases of Netscape Navigator 2.0 in September 1995, but it was renamed Java Script as a marketing ploy by Netscape to give Java Script the cachet of what was then the hot new Web programming language.It is used to make webpages interactive and provide online programs, including video games.The majority of websites employ it, and all modern web browsers support it without the need for plug-ins by means of a built-in Java Script engine.The original ECMAScript 4 work led by Waldemar Horwat (then at Netscape, now at Google) started in 2000 and at first, Microsoft seemed to participate and even implemented some of the 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.The next major event was in 2005, with two major happenings in Java Script's history.First, Brendan Eich and Mozilla rejoined Ecma International as a not-for-profit member and work started on ECMAScript for XML (E4X), the ECMA-357 standard, which came from ex-Microsoft employees at BEA Systems (originally acquired as Crossgain).
Microsoft script technologies including VBScript and JScript were released in 1996.
In 1995, Netscape Communications recruited Brendan Eich with the goal of embedding the Scheme programming language into its Netscape Navigator.
Before he could get started, Netscape Communications collaborated with Sun Microsystems to include in Netscape Navigator Sun's more static programming language Java, in order to compete with Microsoft for user adoption of Web technologies and platforms.
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.
Action Script and JScript are other well-known implementations of ECMAScript.