NullableMapExtensions<K, V> extension

on

Properties

isEmpty → bool: Whether there is no key/value pair in the map.
no setter
isNotEmpty → bool: Whether there is at least one key/value pair in the map.
no setter
length → int: The number of key/value pairs in the map.
no setter

containsKey(Object? element) → bool: Whether this map contains the given key.
containsKeyAll(Iterable<Object?> keys) → bool: Returns true if all of the given keys is in the map.
containsKeyAny(Iterable<Object?> keys) → bool: Returns true if any of the given keys is in the map.
containsValue(Object? element) → bool: Whether this map contains the given value.
containsValueAll(Iterable<Object?> values) → bool: Returns true if all of the given values is in the map.
containsValueAny(Iterable<Object?> values) → bool: Returns true if any of the given values is in the map.
get<T>(K key, T orElse) → T: Get the value corresponding to key in the map.
merge(Map<K, V>? others) → Map<K, V>: Merges the map in others with the current map.