Return the lowest index at which a value (second argument) should be inserted into an array (first argument) once it has been sorted. For example, where([1,2,3,4], 1.5) should return 1 because it is greater than 1 (index 0), but less than 2 (index 1).

bonfire-where-do-i-belong.js

// Bonfire: Where do I belong
// Author: @joepichardo
// 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.
  
  var indexOfNum;
  //sort from lowest to highest
  arr.sort(function(a, b) {
    return a - b;
  });
  
  //go through sorted array
  //find if num and variable in array are equal, return same index
  // else if arr variable is less than number continue
  // to add 1 to the current index to place it in front of lower variable
  for(var i = 0; i < arr.length ; i ++){
    if(num === arr[i]){
      indexOfNum =  i;
    }else if (arr[i] < num){
      indexOfNum = i+1;
    } 
  }
  
  return indexOfNum;
}

where([40, 60], 50);