equals method
override
Compare two elements for being equal.
This should be a proper equality relation.
Implementation
@override
bool equals(List<E>? list1, List<E>? list2) {
if (identical(list1, list2)) return true;
if (list1 == null || list2 == null) return false;
var length = list1.length;
if (length != list2.length) return false;
for (var i = 0; i < length; i++) {
if (!_elementEquality.equals(list1[i], list2[i])) return false;
}
return true;
}