How exactly does this recursive function work in JavaScript?

Question

I have the following example of a recursive function, and what I don\'t understand is the order in which things are happening:

function power(base, exponent)         


        

Answer 1

As with any recursive function, the return from a particular "instance" happens when the return value has been calculated. This means that the recursed versions will then have been calculated.

So if you pass in an exponent of 4, there will be at some point 4 copies of the function being executed at one time.