A collection of ES6 shims for polyfiling Exendscript (for es5 shims take a look at https://github.com/ExtendScript/extendscript-es5-shim)
Currently you can install the package using npm:
npm init -y
npm install extendscript-es6-shim
All polyfills could be used in your code.
npm install
npm run bundle
./bin/concat.js
into the folders
array