Understood. I've noticed similar benchmark results when I ran your test. Perhaps what I am vaguely recalling is a "narrowing of the gap", so to speak.
I refer back to my original post about when to use map vs. foreach. In this case, where it is executing many many times, it will make a difference. However, in the bulk of my coding, I use one or the other when it makes sense (primarily in a list vs. void context) and worry about performance later. I don't believe there is a time where, all other things being equal, map will be faster than foreach. I could be completely off the mark on this, however.
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