unpowerful

I don't like this solution because you are mutating the function argument.

Great! solution!

Same solution as mine, but you have a great use of naming and aliases to make it more readable.

just genius

If we put the return statement inside the for loop, the for loop will only run once and therefor will not sum all the positive numbers, the return statement will exit the function immediately once it is encountered, and that's why we should place it outside the for loop so the for loop can run correctly al sum all the positive numbers.

May I ask why the return total is outside of the for loop? I had everything correct but that. Just need somebody to explain ty!!

same with mine) good though

My solution was almost same, without the destructuring. That's nice!

This is great! I like it

That's a more readable solutiont than with reg exp

Simple and Сlearly

As for me the best sol., and liberates you from learning REG EXP

Tbh I don't think this is could be best practices... But ok

Well, it wouldn't be in the solution list if it doesn't work. Just, not recommended though. Using global variable like that in production code can lead to various issues.

Would this work? (because i is undefined). Good method tho!