# Built-in values iterator in JavaScript

All iterables have the built-in `values` iterator that allows you to iterate over values. Let's test it on a `Map` collection:

`let map = new Map; map.set('a', 1); map.set('b', 2); map.set('c', 3);`

We get an iterator:

`let iter = map.values();`

And loop through it:

`for (let elem of iter) { console.log(elem); // 1, 2, 3 }`

Test the work of this iterator on an array.

Test the work of this iterator on a `Set` collection.

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