Set to array

If you have a Set and want to transform it into an array you can do it with the spread syntax

const uniqueNumbers = new Set([1, 1, 4, 5, 4])
const arr = [...uniqueNumbers]

So a fancy way of getting unique values is casting an array back and forth:

let arr = [1, 1, 4, 5, 4]
arr = [...new Set(arr)]