Adding with a While Loop

Now that we know what a while loop is, let's use one to do something useful. Remember that strangeAddition function we wrote to sum a list of numbers? Let's rewrite it using a while loop. To pass the tests, do the following:

Create a function called add. It should take one argument called nums. In the function body:

1. Create a variable called sum and set it to 0.
2. Create a while loop. It should run as long as nums is not empty: while (nums.length > 0) { }.
3. Inside the while loop, pop the last element from nums and add it to sum: sum = sum + nums.pop().
4. After the while loop, return sum.

Before pressing the test button, try it out. For example, do you get the right result when you try this?

console.log(add([1, 2, 3, 4, 5]));