Which Ecmascript Standards Comply Adobe's Extendscript Implementation? (if Any)

I'm a JavaScript developer, who has just begun to dive into Adobe's ExtendScript technology, aiming to improve productivity and workflow on many of my enterprise's daily tasks on I

Solution 1:

If you look at the After Effects CS6 Scripting Guide, it says:

The After Effects scripting engine supports the 3rd Edition of the ECMA-262 Standard, including its notational and lexical conventions, types, objects, expres- sions, and statements. ExtendScript also implements the E4X ECMA-357 specification, which defines access to data in XML format.

I imagine the rest of the Adobe Collection is the same.

Solution 2:

You can add the ECMAScript 5 array methods to ExtendScript by including a modified version of this polyfill. The one modification you need to make is at the very end of array.generics.js, remove the block of code scoped by if (document). (around line 583).