Introducing ECMAScript 5.1
by Dev{eloper} Stonez
at 2011-12-09 22:17:38
original http://feeds.dzone.com/~r/dzone/frontpage/~3/h18bye8grw0/introducing_ecmascript_51.html
ECMAScript 5.1 (or just ES5) is the latest revision of the ECMAScript standard — the specification that JavaScript is based on. Similar in spirit to the HTML5 specification process, ES5 standardizes existing JavaScript implementations in conjunction with additions to the language and native ECMAScript objects. ES5 also introduces a strict variant of the language known as "strict mode".
In this article we'll introduce some of the most useful changes and additions. For a full list, consult Appendices D and E of the official ECMAScript language specification (PDF download, 3MB), available from http://www.ecmascript.org/