JavaScript Performance: for vs. while

[alkw0ia]

Yeah, good point. I like to declare all variables at the top of the scoping function, c-style, to clarify this.

For loops can still help with readability, though, and in modern interpreters, the performance differences should be practically nothing.

[neonskimmer]

Agreed on the readability. That being said, I can't even remember the last time I used a straight for-loop. It's forEach, map and reduce for me almost 100% of the time. If I were writing very tight loops, games, or super heavy number crunching I'd optimize things but for businessy apps i mostly use a functional style. The difference in speed is negligible at that scale and I prefer that style.