What is map.removeWhere() in Dart?
removeWhere() is a method in Dart that removes all entries of a map that satisfy the given criteria or condition.
Syntax
void removeWhere (bool predicate(K key, V value))
Parameter
The map.removeWhere() method requires the key and the value to remove from the map.
Return value
The Dart function map.removeWhere() removes a specific element (key-value pair) from a map.
Code
The following code shows how to use the map.removeWhere() method:
Map<String, dynamic> employee = {'name': 'Elijah Maria','age': 20,'language': 'English','Occupation': 'Flutter developer','Address': null,'contact': null,'hobby' : 'Cooking','Relationship': null};void main() {employee.removeWhere((key, value) => value == null || key == 'contact');print('Employee details: ${employee}');}