Published Apr 4, 2024Updated May 15, 2024
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In Dart, the .length property returns the number of elements in a queue.


  • queueName: The name of the queue to be checked.


The below example creates a queue named example_queue, appends five integer elements to it, and calculates its length using the .length property:

import 'dart:convert';
import 'dart:collection';
void main()
// Initializing a queue
Queue<int> example_queue = Queue<int>();
// Appending elements to the queue
example_queue.addAll([1, 3, 5, 2, 0]);
// Calculating the length of the queue
print("The length of the queue is: ${example_queue.length}");

The above code will give the following output:

The length of the queue is: 5

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