In the minified code there are still a lot of Math.PI, Math.sin, Math.cos… could this not be optimised further with something like s=Math.sin…?
So not only are you right, it's actually super easy. Just do this at the top level of your code:
const {cos, sin, PI /* etc */} = Math;Except that the word const does seem to be used in the uncompressed version, so we don't know what happens during compression in the Closure compiler, no? Or is the 2k version pre-Closure compiler different from the uncompressed version?
Either way the only way to know is to try because asymptotically free is all well and good, but without measurement we don't know the actual behavior in practice and we are just making assumptions about how well or how badly things compress and how the mangling process works out.
> it is still 1 byte larger then without
That's actually pretty cool, because together with your earlier remark of ~40x occurrences of Math.<whatever> that means we have a ballpark figure for where the tipping point is!