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dart sort queue
tinyqueue #
import 'package:dart_sort_queue/dart_sort_queue.dart';
main() {
// create a priority queue from an existing array (modifies the array)
dynamic queue = SortQueue<int>([7, 5, 10], (a, b) => a.compareTo(b));
// add some items
queue.push(7);
queue.push(5);
queue.push(10);
// remove the top item
var top = queue.pop(); // returns 5
// return the top item (without removal)
top = queue.peek(); // returns 7
// get queue length
queue.length; // returns 2
// pass a custom item comparator as a second argument
queue = SortQueue<Map<String, int>>([
{"value": 5},
{"value": 7}
], (a, b) {
return (a["value"] ?? 0) - (b["value"] ?? 0);
});
// turn a queue into a sorted array
var list = queue.toList();
}
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For a faster number-based queue, see flatqueue.
Install #
Install using pub for Dart (dart pub add dart_sort_queue), or for Flutter (flutter pub add dart_sort_queue) then:
Thanks #
A port of tinyqueue by mourner to Dart
Inspired by js-priority-queue
by Adam Hooper.
For personal and professional use. You cannot resell or redistribute these repositories in their original state.
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