Question

Say for instance I have the number 12:

var number = 12;

How could I change that number into something like:

var n = [0,1,2,3,4,5,6,7,8,9,10,11,12];

Answer 1

Someone probably has a jQuery shortcut, but here’s a plain JavaScript solution:

var num = 12;
var n = [];
for (var i=0; i <= num; i++) {
  n.push(i);
}

As a function:

function num2Array(num) {
  var n = [];
  for (var i=0; i <= num; i++) {
    n.push(i);
  }
  return n;
}

console.log(num2Array(15));
// [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]