ECMAScript 5 compatibility script for older browsers

Question

Is there already a opensource project out there which implements ECMAScript 5 features for browsers which do no implement it natively? Something like the IE7.js project which implements missing standard stuff in Internet Explorer.

I'd like to use the new Function.bind() and String.trim() and JSON.parse() functions but they are currently only available in the newest browsers like the latest Chromium. I'd like to simply include a script like "ecma5.js" which then implements all this stuff if missing in the browser.

So is there already a project like this available? If not then I have to do it myself.

Answer 1

es5-shim should give you what you want (or, as close to it as possible... be sure to read the caveats). You can find a list of other polyfills here.

Answer 2

DDR-ECMA5 library is intended to do what you asked. Of course not everything is possible to be implemented with ECMAScript 3 standard, but as much as possible is there.