Dart by Example: Unused Variables

1. main() {
2. for (var i in new Iterable.generate(1)) {
3. print('not using "i"');
4. }

6. // using an underscore silences "local variable is not used"
7. // warnings when running dartanalyzer
8. for (var _ in new Iterable.generate(1)) {
9. print('no warnings');
10. }
11. }

1. $ dartanalyzer web/examples/unnamed_parameters/unnamed_parameters.dart
2. [hint] The value of the local variable 'i' is not used (unnamed_parameters.dart, line 2, col 12)
3. 1 hint found.

by @jryanio | source | license