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.
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The standards process continued in cycles, with the release of ECMAScript 2 in June 1998, which brings some modifications to conform to the ISO/IEC 16262 international standard.
The release of ECMAScript 3 followed in December 1999, which is the baseline for modern day Java Script.
Internet Explorer 3 also included Microsoft's first support for CSS and various extensions to HTML, but in each case the implementation was noticeably different to that found in Netscape Navigator at the time.
These differences made it difficult for designers and programmers to make a single website work well in both browsers, leading to the use of "best viewed in Netscape" and "best viewed in Internet Explorer" logos that characterized these early years of the browser wars.
), often abbreviated as JS, is a high-level, dynamic, weakly typed, prototype-based, multi-paradigm, and interpreted programming language.
Alongside HTML and CSS, Java Script is one of the three core technologies of World Wide Web content production.Although there are strong outward similarities between Java Script and Java, including language name, syntax, and respective standard libraries, the two languages are distinct and differ greatly in design; Java Script was influenced by programming languages such as Self and Scheme.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.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.With the release of Internet Explorer 4, Microsoft introduced the concept of Dynamic HTML, but the differences in language implementations and the different and proprietary Document Object Models remained and were obstacles to widespread take-up of Java Script on the Web.