first property

@override E first

The first element.

Throws a StateError if this is empty. Otherwise returns the first element in the iteration order, equivalent to this.elementAt(0).

Implementation

@override
E get first => elements.first;

@override void first=(E value)

Updates the first position of the list to contain value.

Equivalent to theList[0] = value;.

The list must be non-empty.

If the list is strict, a DuplicateValueError will be thrown if value already exists in the list, unless value is equivalent to the element being set.

Implementation

@override
set first(E value) {
  if (value != elements.first && _contains(value)) {
    throw DuplicateValueError(value);
  }
  elements.first = value;
}