When/why to use map/reduce over for loops

Question

So I am getting into a bit of object manipulation in JavaScript for the first time and I have a question I\'m wondering if anyone could answer.

When I have an object

Answer 1

Just bumped into this and found that none of the answers highlights one important difference between for-loop and map as to when to use one over the other:

1. With map you can't break out of an iteration which you can with for-loop.

For e.g, you can't do this

const arr = [5, 6, 9, 4];
arr.map(elem=>{
   if(elem === 5){
     break; //This is not allowed
  }
})