dropLast method
Returns a List containing all elements except last count
elements.
Implementation
List<E> dropLast(int count) {
if (count.isNegative) {
throw ArgumentError.value(
count,
'count',
'Must be greater than zero',
);
}
final length = this.length - count;
return length.isNegative ? [] : sublist(0, length);
}