To add an array of values to a Set with JavaScript, we can call the set add method.
For instance, we write
array.forEach((item) => mySet.add(item));
to call array.forEach with a callback that calls mySet.add to add item in array into the mySet set.
We use forEach to call the same callback for each item in array.
Conclusion
To add an array of values to a Set with JavaScript, we can call the set add method.