bytao7mao/JS push and sort

## JS push and sort
function getIndexToIns(arr, num) {
  arr.push(num);                    // first we add a number in the array
  arr.sort(function(a, b) {        // then we sort the array in ascending order
    return a-b;
  });
  return arr.indexOf(num);        //then we return the index of the num added to the array
}
	function getIndexToIns(arr, num) {
	arr.push(num); // first we add a number in the array
	arr.sort(function(a, b) { // then we sort the array in ascending order
	return a-b;
	});
	return arr.indexOf(num); //then we return the index of the num added to the array
	}