Monday, March 17, 2014

JavaScript Versions

JavaScript Birth

JavaScript was created at Netscape in 1998, and the name JavaScript is a trademark of Oracle. Netscape submitted the language for standardization to ECMA (the European Computer Manufacturer’s Association) and, because of trademark issues, the standardized version of the language was given the name ECMAScript.

Browser Vendors' Names for JavaScript

Mozilla calls its ECMAScript implementation JavaScript and Microsoft JScript.

JavaScript Versions

By 2008, all major web browsers were compliant with the standard ECMAScript version 3.
In December 2009, ECMAScript version 5 was defined and the first browsers to implement it were Internet Explorer 9 and Firefox 4.
The only versions that are relevant are ECMAScript version 3 and 5.

http://caniuse.com/#search=ecmascript

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