Add a new element to the set. Does not add if there is an
equivalent already present. Returns true where an element
is added, false where it already exists (and was possibly
updated).
Time complexity: O(1) average; O(n) worst.
booladd(K key, V element)
classHashMap(K, V, alias Hash = Container.hash, alias Reap = Container.reap, alias Heap = Container.DefaultCollect)
Add a new element to the set. Does not add if there is an equivalent already present. Returns true where an element is added, false where it already exists (and was possibly updated).
Time complexity: O(1) average; O(n) worst.