http://www.freecodecamp.com/mattnwa 's solution for Bonfire: Where do I belong

bonfire-where-do-i-belong#.js

// Bonfire: Where do I belong
// Author: @mattnwa
// Challenge: http://www.freecodecamp.com/challenges/bonfire-where-do-i-belong#
// Learn to Code at Free Code Camp (www.freecodecamp.com)

function where(arr, num) {
  // Find my place in this sorted array.
 arr.push(num);
  arr.sort(function(a,b){
    return a-b;
  });
  return arr.indexOf(num);
}

where([10, 20, 30, 40, 50], 35);