first property

@override T first

Returns 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
T get first => super.value.first;

@override void first=(T element)

Put the value at the first element.

Implementation

@override
set first(T element) {
  if (isEmpty) {
    throw RangeError.index(0, this);
  }
  this[0] = element;
}