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

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

// Bonfire: Where do I belong
// Author: @robertsheacole
// 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) {
	//Push num into the arr array.
	arr.push(num);
	//Reorder arr from lowest to highest number.
	arr.sort(function(a, b){
		return a - b;
		/*.sort() runs the function to compare numbers instead of the default behavior of sort
		which converts inputs to strings then compares.*/
	});
//Find index of num
	//Loop through arr
	for (var i = 0; i < arr.length; i++){
		//if num === arr return index
		if (arr[i] === num){
			var indexNum = arr.indexOf(arr[i]);
			return indexNum;
		}
	}
}
console.log(where([40, 60], 30));