Sets

const games = new Set(['Super Mario Bros.', 'Banjo-Kazooie', 'Mario Kart', 'Super Mario Bros.']);

// add e delete

games.add('Banjo-Tooie');

games.add('Age of Empires');

games.delete('Super Mario Bros.');

console.log(games);

const months = new Set(['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December']);

// size - NOT length

console.log(months.size);

//has

console.log(months.has('September'));

// .values() - return a SetIterator object

// .key() - is same that .values(), only an alias

console.log(months.values());

// Iterator

const iterator = months.values();

console.log(iterator.next());

console.log(iterator.next());

console.log(iterator.next());

console.log(iterator.next());

console.log(iterator.next());

// for ... of

const colors = new Set(['red', 'orange', 'yellow', 'green', 'blue', 'violet', 'brown', 'black']);

for (const color of colors) {

console.log(color);

}