dart:html

first property

Rectangle<num> first

Implementation

Rectangle get first {
  if (this.length > 0) {
    return JS('Rectangle', '#[0]', this);
  }
  throw new StateError("No elements");
}

void first= (Rectangle<num> value)

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;
}