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:

javascriptlet map = new Map;

map.set('a', 1);
map.set('b', 2);
map.set('c', 3);

We get an iterator:

javascriptlet iter = map.values();

And loop through it:

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