Shim element.closest()

[binarykitchen]

Looks like it's not supported on core-js yet? No hits. This one:
http://caniuse.com/#feat=element-closest

That package could be helpful
https://github.com/jonathantneal/closest

[zloirock]

Thanks for the proposal, but at this moment DOM polyfills are not in the core-js scope.

[binarykitchen]

why not?

[AlexWayfer]

"Iterable DOM collections" are in the core-js scrope, but "DOM elements" are not 😑

[zloirock]

@AlexWayfer iterable DOM collections related ECMAScript iterable protocol and required for correct work of many core-js and babel features like for-of loops, spread, collection constructors, etc.

[zloirock]

Theoretically, DOM polyfills could be added to core-js in the future, but definitely not soon. I haven't enough time even for that and have much more priority tasks.

[AlexWayfer]

They can be added to a separate namespace, doesn't required by general namespace requiring. But it's your choise, just an idea.