Re:Why Python Is Slow: Looking Under the Hood (2014)
by jstimpfle on Thursday July 07, 2016 @07:28PM
(#12052743)
No need to disqualify the answer. The point of my question was of course to learn about aspects of Javascript-the-language that make it intrinsically easier to build a fast implementation for than building one for python.
If there are just more difficult-to-implement features that is interesting as well (although it would be nice to know which ones).
So the number of features doesn't matter, only whether or not they are all possible to implement efficiently, and the lack of a standard doesn't matter, as with infinite money you could test comprehensively.