W3cubDocs

/Dart 2

dart:collection

length property

int length

Implementation 

int get length => (_tail - _head) & (_table.length - 1);

© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-collection/ListQueue/length.html