description

# remove method Null safety

V? remove (

1. Object? key

)

Removes `key` and its associated value, if present, from the map.

Returns the value associated with `key` before it was removed. Returns `null` if `key` was not in the map.

Note that values can be `null` and a returned `null` value doesn't always mean that the key was absent.

## Implementation

    V? remove(Object? key);