first property
override
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
Map get first {
if (this.length > 0) {
return JS('Map', '#[0]', this);
}
throw new StateError("No elements");
}
inherited
Updates the first position of the list to contain value
.
Equivalent to theList[0] = value;
.
The list must be non-empty.
Implementation
void set first(E value) {
if (length == 0) throw IterableElementError.noElement();
this[0] = value;
}