MutableMap::lastKey
Returns the last key in the current MutableMap
public function lastKey(): ?Tk;
Returns
?Tk
- The last key in the currentMutableMap
, or null if theMutableMap
is empty.
Returns the last key in the current MutableMap
public function lastKey(): ?Tk;
?Tk
- The last key in the current MutableMap
, or null if the
MutableMap
is empty.