What's more efficient?

[JeremyLT]

It’s more efficient to only loop once through your data. You can make your array only represent odd numbers and get a nice speedup.

I’ve got some code and discussion here

JavaScript Performance Measurement & Variability

So, I have a couple of questions about performance in JavaScript. I do high performance C/C++/CUDA professionally, so I’m trying to see what of that knowledge is applicable to JavaScript. In another thread I played with some performance optimization for the Sum Primes challenge. I mostly used C style optimizations, but I think that my performance is reasonable.

repl link

<a href="https://replit.com/@jeremylt/ShamefulKnownScans-1">https://replit.com/@jeremylt/ShamefulKnownScans-1…