Third Greatest with Sort(compare) created by wwebby1 - https://repl.it/E876/3

Third Greatest with Sort(compare).js

// # Write a method that takes an array of numbers in. Your method should
// # return the third greatest number in the array. You may assume that
// # the array has at least three numbers in it.
// #

function thirdGreatest(nums){
	nums.sort(function compare(num1, num2)
	{return num1 -num2});
	return nums[nums.length-3];
}

console.log(thirdGreatest([4,6,1,3,8,3,4]));