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I can find references to things like: 1.6, 1.7, ES5, ES6, ECMA-262 Edition 3, ECMAScript 2020, and many more but not a nice list. The links in old answers are to charts of standards not lists of functions.

I am watching and reading about javascript. Trying to reproduce training examples and I find array.reject(function... so I try it.

TypeError: zooPop.reject is not a function

I don't know if I am doing something wrong or this is not supported in App Scripts. Does Google maintain a list? In stackoverflow I find statements that soNso is not supported but the date is a year or more ago. Now it is supported. Pulling out my hair.

L.Klein
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  • The list is almost the same as found in [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array) with the exception of cutting edge latest features – TheMaster Dec 29 '20 at 05:14
  • That function doesn't seem to be currently supported in the ECMAScript standard (on which Javascript is based). So GAS is not likely to support it either. Checked [can-i-use](https://caniuse.com/?search=Array.prototype.reject) and that function wasn't even listed. There are proposals floating around lobbying for support but they don't seem to be gaining any traction. I couldn't even find a polyfill for it. – TheAddonDepot Dec 29 '20 at 15:03
  • @TheMaster having a list that is almost the same / sort of correct is not very useful. I did a lot of searching for a definitive list. I would think Google would maintain one. Stackoverflow covers for Google's lack of documentation and I use it constantly. – L.Klein Jan 01 '21 at 06:09
  • @L.Klein Having a exact 100% definitive list is not worth the effort. I say "almost", but you'll rarely run into any incompatibilities. Fix your IDE like Vscode/vim with Typescript and eslint/tslint set to ECMA2018 or 2019 and you should be good. – TheMaster Jan 01 '21 at 06:48
  • I am a retired mainframe programmer working in Google App Script to develope material for my parttime teaching ELL job. You are speaking Greek but thanks for replying – L.Klein Jan 03 '21 at 17:44

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