Hi @markelog :)

if by "modulize it" you think about doing that:

define([
    "../var/document"
], function( document ) {
function createElement( nodeName ) {
    return document.createElement( nodeName );
}
return createElement;
});

It's save -15 bytes by removing all the 16 occurences of document.createElement in the code.

   raw     gz Sizes
255862  75752 dist/jquery.js
 84426  29376 dist/jquery.min.js

   raw     gz Compared to master @ 5fe76c663f8a4986af62edb434a1708c006d0b21
   -32    +15 dist/jquery.js
  -125    -15 dist/jquery.min.js

If you want I can make a PR with this: https://gist.github.com/Mr21/81a1c21e0cbf7136245a

@mr21 I believe it was more about re-using the test div itself, i.e.:

define([
    "../var/document"
], function( document ) {
return document.createElement( "div" );
});

& similar for other types of test nodes that are created. If it helps with size, a separate createElement function could be created as well, I'd guess it won't save size, though (but feel free to check).

Please don't do anything for compat, though, before #2504 lands as it will change some test-related things.

I believe it was more about re-using the test div itself

Yep

Closing in favor of tracking in the Roadmap.

Not relevant anymore as master has almost no feature tests.