Due to a problem with Internet Explorer 11 and ES7 array.includes() function i had to import core-js/es7/array in the polyfills.ts. I have noticed, that there is already a core-js/es6/array.
My question is, does the es7/array includes the polyfills for the older version es6/array (and below)? Can I remove the es6/array or do I need both of them?
After comparing the core-js/es6/object.js with the core-js/es7/object.js it is clear that the ES6 polyfill indeed adds only methods introduced in ES6 and this is not covered by the ES7 polyfill. That one only adds methods introduced in ES7.