operator []= method
Associates the key
with the given value
.
If the key was already in the map, its associated value is changed. Otherwise the key/value pair is added to the map.
Implementation
@override
void operator []=(K key, V value) {
if (_isReadonly) {
throw UnsupportedError('Attempted to change a read-only map field');
}
ArgumentError.checkNotNull(key, 'key');
ArgumentError.checkNotNull(value, 'value');
_wrappedMap[key] = value;
}