const customerDishes = [ "Chicken Wings", "Fish Sandwich", "Beef Stroganoff", "Grilled Cheese", "Blue Cheese Salad", "Chicken Wings", "Reuben Sandwich", "Grilled Cheese", "Fish Sandwich", "Chicken Pot Pie", "Fish Sandwich", "Beef Stroganoff" ]; // a set forces uniqueness within its elements new Set([1, 2, 3, 4, 5, 6, 7, 8, 0]).size //the size element doesn't allow repenting elements new Set2([1,1,2,3,4,5]).size // it would throw out the repeating number new Set3 ([[1],[2],[3],[3],[3]]) // But it will not throw out seperate arrays to get the values of a set we have to iterate over it. You can use a foorloop for (const num of numbers) { console.log(num) } //This is one way to keep arrays from repeating themselves and keep things from repeating.