# remove method

String remove (dynamic key)
override

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

    String remove(dynamic key) {
      throw new UnsupportedError("Not supported");
    }