How to add an array of values to a Set

Question

The old school way of adding all values of an array into the Set is:

// for the sake of this example imagine this set was created somewhere else 
// and I ca         


        

Answer 1

While Set API is still very minimalistic, you can use Array.prototype.forEach and shorten your code a bit:

array.forEach(item => mySet.add(item))

// alternative, without anonymous arrow function
array.forEach(mySet.add, mySet)