Key Value - (Map|Dictionary) - associative (memories|arrays)
1 - About
A map is an object that maps keys to values.
key valueare grouped together in a collection called a
- that cannot contain duplicate keys; each key can map to at most one value.
Also known as:
- associative memories” or “associative arrays”
A map holds a set of key/ value pairs and provides constant-time operations to store, retrieve, or test for an item in the set.