Subscribe to new elements on the page #22

elementReady only works for one element, but sometimes it’s useful to just get all the elements on the page as they load. For example:

elementReady.subscribe('a', shortenLink);

This will run the function on each new element found on the page before reaching DOM ready.

MutationObserver with subtree:true would be ideal for this but somewhere at some point I read that it’s heavy to run this while the page loads as there are too many events. It would be great to actually test this and compare it to a simpler setInterval + querySelectorAll. Without performance tests, I’d avoid MutationObserver

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