Dart リスト(配列)で指定した値を削除する

リスト.remove(値)

※ 値が存在すれば「true」,存在しなければ「false」が返ります

void main() {
  var list = ['aaa', 'bbb', 'ccc', 'ccc'];

  print(list.remove('aaa')); // true

  print(list); // [bbb, ccc, ccc]

  print(list.remove('ccc')); // true

  print(list); // [bbb, ccc]

  print(list.remove('ddd')); // false

  print(list); // [bbb, ccc]
}

void main() {
  const list = ['aaa', 'bbb', 'ccc', 'ccc'];

  print(list.remove('aaa'));

  print(list);
}
Unhandled exception:
Unsupported operation: Cannot remove from an unmodifiable list
#0      UnmodifiableListMixin.remove (dart:_internal/list.dart:134:5)
#1      main (file:///c:/sample/main.dart:4:14)
#2      _delayEntrypointInvocation.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:297:19)
#3      _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:192:12)

void main() {
  final list = ['aaa', 'bbb', 'ccc', 'ccc'];

  print(list.remove('aaa')); // true

  print(list); // [bbb, ccc, ccc]
}

void main() {
  final list = ['aaa', 'bbb', 'ccc', 'ccc'];

  print(list.removeAt(0)); // aaa

  print(list); // [bbb, ccc, ccc]
}