addAll

addAll(target, values)

Adds all values from an iterable to the target set and returns a new set.

data-first

addAll(new Set([1, 2]), [3, 4]); // Set([1, 2, 3, 4])
addAll(new Set([1, 2]), [2, 3]); // Set([1, 2, 3])

data-last

pipe(new Set([1, 2]), addAll([3, 4])); // Set([1, 2, 3, 4])
pipe(new Set([1, 2]), addAll([2, 3])); // Set([1, 2, 3])