... Chapter 1 • Introduction to JavaScript So where is JavaScript now? As of December 2009, the ECMA-262 Standard is in its 5th edition. JavaScript is a dialect of ECMAScript, but JavaScript 1.8 is comparable ... of WoweBook.Comptg1.10 What Browser? 17 JavaScript 1.3 1998 ECMA- 232, Netscape Navigator 4.06–4.7x, Internet Explorer 5.0 JavaScript 1.5 2000 ECMA- 232, Netscape Navigator 6.0+, Mozilla Firefox, ... JScript 5.5, 5.6, 5.7, 6 JavaScript 1.6 2006 Mozilla Firefox, Safari JavaScript 1.7 2006 Mozilla Firefox, Safari, Google Chrome JavaScript 1.8 2008 Mozilla Firefox JavaScript is supported by...