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Showing content from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/keys below:

Set.prototype.keys() - JavaScript | MDN

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The keys() method of Set instances is an alias for the values() method.

None.

A new iterable iterator object.

The keys() method is exactly equivalent to the values() method.

const mySet = new Set();
mySet.add("foo");
mySet.add("bar");
mySet.add("baz");

const setIter = mySet.keys();

console.log(setIter.next().value); // "foo"
console.log(setIter.next().value); // "bar"
console.log(setIter.next().value); // "baz"

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