qv2

A slightly modified Queue.js (originally written by Stephen Morley under CC0 1.0 Universal).

Not really too much to see here, just a few improvements and things.

Here's an example of it in use:

var Queue = require('qv2');
var testQueue = new Queue();

console.log(testQueue.empty); // prints: true

// .enqueue moves the argument to the back of the queue
testQueue.enqueue(1);
testQueue.enqueue(2);
testQueue.enqueue(3);

// queue.length returns the length
console.log(testQueue.length); // prints: 3

// .dequeue dequeues the frontmost element
console.log(testQueue.dequeue()); // prints: 1

// .peek returns the frontmost element without dequeuing it
console.log(testQueue.peek()); // prints: 2

console.log(testQueue.dequeue()); // prints: 2
console.log(testQueue.dequeue()); // prints: 3
console.log(testQueue.length); // prints: 0

// .dequeue returns undefined when the queue is empty
console.log(testQueue.dequeue() == undefined); // prints: true

Here is the link to the original file.

This, like the original, is licensed under the CC0 1.0 license. You can read it in the 'LICENSE' file in the directory.