isContains method

bool? isContains(
  1. List? list,
  2. dynamic e
)

Implementation

bool? isContains(List<dynamic>? list, dynamic e) {
  if (list != null && widget.funcOfItemIsEqual != null) {
    int len = list.length;
    for (int i = 0; i < len; i++) {
      if (widget.funcOfItemIsEqual?.call(this, i, list.elementAt(i), e) ?? false) {
        return true;
      }
    }
  }
  return list?.contains(e);
}