getIndexForInsert.js

// Searches for index to insert given parameter into array in ascending order.

function getIndexToIns(arr, num) {
  
  arr.sort(function(x, y){
    return x > y;
  });
  
  for(var i = 0; i < arr.length; i++){
    if(num <= arr[i]){
      return i;
    }
  }
  
  return arr.length;
}