what does javascript do

Javascript is an object-oriented client-side scripting language developed from Netscape's LiveScript. Its main purpose is to solve the speed problems left by server-side languages, such as Perl. Provide customers with smoother browsing effects. At that time, the server needed to verify the data. Since the network speed was very slow, only 28.8kbps, the verification step wasted too much time. So Netscape's browser Navigator added Javascript to provide basic functions of data verification. The official name of JavaScript is "ECMAScript". This standard is developed and maintained by the ECMA organization. ECMA-262 is the official JavaScript standard. This standard is based on JavaScript (Netscape) and JScript (Microsoft). Brendan Eich of Netscape (Navigator 2.0) invented the language, which has appeared in all Netscape and Microsoft browsers since 1996. Development of ECMA-262 began in 1996, and in July 1997, the ECMA General Assembly adopted its first version. In 1998, this standard became an international ISO standard (ISO/IEC 16262). This standard is still under development. In December 2005, ECMA released the ECMA-357 standard (ISO/IEC 22537), which mainly added effective support for the extended markup language XML. [Edit this paragraph] History: Around 1992, a company called Nombas began to develop an embedded scripting language called C-minus-minus (Cmm for short). This scripting language was bundled in a shareware product called CEnvi. When Netscape Navigator came to prominence, Nombas developed a version of CEnvi that could be embedded in web pages. These early experiments were called EspressoPage, and they represented the first client-side scripting language used on the World Wide Web. Nombas had no idea that its concept would become an important cornerstone of the Internet.

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