put pair (k,v) into hash. inherits @safe and @nogc properties from K and V It can resize table if table is overloaded or has too much deleted entries. Returns: Nullable with old value if value was updated, or empty Nullable if we just stored new value.
put pair (k,v) into hash. inherits @safe and @nogc properties from K and V It can resize table if table is overloaded or has too much deleted entries. Returns: Nullable with old value if value was updated, or empty Nullable if we just stored new value.