The following is a changelog for JavaScript 1.6. This version was included in Firefox 1.5 (Gecko 1.8), which was released in November 2005. The corresponding ECMA standard is ECMA-262 Edition 3 and ECMAScript for XML (E4X) with some additional features. Several new features were introduced: E4X, several new Array methods, and Array and String generics.
Array.prototype.indexOf()Array.prototype.lastIndexof()Array.prototype.every()Array.prototype.filter()Array.prototype.forEach()Array.prototype.map()Array.prototype.some()for each...inarguments[n] cannot be set if n is greater than the number of formal or actual parameters has been fixed.