Use Spread and Notes for ES5 Set() Integration

FCC link

Do you remember the ES6 spread operator ...?

... can take iterable objects in ES6 and turn them into arrays.

Let's create a Set, and check out the spread function.

var set = new Set([1, 2, 3]);
var setToArr = [...set];
console.log(setToArr); // returns [ 1, 2, 3 ]