elementAtOrNull method
Implementation
T? elementAtOrNull(int? index) {
if (index == null || this == null) return null;
if (index >= this!.length || index < 0) return null;
return this?.elementAt(index);
}
T? elementAtOrNull(int? index) {
if (index == null || this == null) return null;
if (index >= this!.length || index < 0) return null;
return this?.elementAt(index);
}