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/Dart 2

length property

int length
inherited

Returns the number of elements in the iterable.

This is an efficient operation that doesn't require iterating through the elements.

Implementation

int get length;

© 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/HashSet/length.html