What are some advanced examples of iterable objects in JavaScript?

Can you give me some advanced examples of iterable objects in JavaScript?

Sure! In JavaScript, advanced iterable objects include Sets, Maps, and custom iterable classes. Would you like to see examples?

Yes, please show me how Sets work as iterables.

Sets are collections of unique values. You can iterate over a Set using a for...of loop. For example:

const mySet = new Set([1, 2, 3, 4]);
for (let value of mySet) {
    console.log(value);
}

This will log 1, 2, 3, and 4.

What about Maps? How do they work as iterables?

Maps are key-value pairs and can also be iterated. You can use forEach or for...of. Here's an example:

const myMap = new Map();
myMap.set('a', 1);
myMap.set('b', 2);
for (let [key, value] of myMap) {
    console.log(key, value);
}

This will log 'a' 1 and 'b' 2.