Tests whether a map contains a key.
Finds a map value by key.
map->get is a member in the Map and Set group; call it on the receiver shown before the arrow.
Inserts keyed values.
map->remove is a member in the Map and Set group; call it on the receiver shown before the arrow.
map->removeAll is a member in the Map and Set group; call it on the receiver shown before the arrow.
Returns map size.
Tests set membership.
set->find is a member in the Map and Set group; call it on the receiver shown before the arrow.
set->get is a member in the Map and Set group; call it on the receiver shown before the arrow.
Inserts a key into a set.
set->remove is a member in the Map and Set group; call it on the receiver shown before the arrow.
set->removeAll is a member in the Map and Set group; call it on the receiver shown before the arrow.