Dividing elements in one array by elements in other?

Question

Maybe trivial but what is an elegant way of dividing elements in one array by another (assume arrays are of equal length)? For instance

var A = [2,6,12,18]
var B = [2,3,4,6]

Dividing should give me: [1,2,3,3]

Answer 1

If you have ES5 support, this may be a good option:

var result = A.map(function(n, i) { return n / B[i]; });

Where n in callback represents the iterated number in A and i is the index of n in A.

Answer 2

Assuming the two arrays are always the same length:

var C = [];
for (var i = 0; i < A.length; i++) {
  C.push(A[i] / B[i]);
}