No need for fancy functions. I love it

absolute winner!

This is what I ended up doing

a for loop of n value seems like a bad idea for large numbers, yet clever solution for a kata without methods.

He did the operation without using methods

This is nice except that every single one of 4 ifs will be tested even though at most 1 can be truthy.

Well that's one way to do it

My eyes

Wht?

this is the smartest way, without built in methods

Why? You are reducing to a single number according to the data ops. The only time there is no operation on that number is for operation o , which just pushes the number to the main function's output array. Seems pretty straightforward.
I've done it a bit differently in that my reduce function builds the main output array but I like this top solution, focusing on the number itself.

In my opinion it would be better to start from x = 1 to avoid a division by zero.

Using reduce as a quasi loop without even returning any reduced value is kind of ugly to my taste.

Wow, this is too good.

Can anyone explain why there is n / 2? Thanks