Length get single { int len = this.length; if (len == 1) { return JS('Length', '#[0]', this); } if (len == 0) throw new StateError("No elements"); throw new StateError("More than one element"); }
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-svg/LengthList/single.html