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Learning JavaScript Data Structures and Algorithms - Third Edition
book

Learning JavaScript Data Structures and Algorithms - Third Edition

by Loiane Avancini
April 2018
Beginner to intermediate content levelBeginner to intermediate
426 pages
10h 19m
English
Packt Publishing
Content preview from Learning JavaScript Data Structures and Algorithms - Third Edition

Using the Queue class

First, we need to instantiate the Queue class that we created. Next, we can verify that it is empty (the output is true because we have not added any elements to our queue yet):

const queue = new Queue();console.log(queue.isEmpty()); // outputs true

Next, let's add some elements to it (let's enqueue the elements 'John' and 'Jack'; you can add any element type to the queue):

queue.enqueue('John');queue.enqueue('Jack');console.log(queue.toString()); // John,Jack

Let's add another element:

queue.enqueue('Camila');

Let's also execute some other commands:

console.log(queue.toString()); // John,Jack,Camilaconsole.log(queue.size()); // outputs 3console.log(queue.isEmpty()); // outputs falsequeue.dequeue(); // remove Johnqueue.dequeue(); ...
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Learning JavaScript Data Structures and Algorithms

Learning JavaScript Data Structures and Algorithms

Loiane Avancini

Publisher Resources

ISBN: 9781788623872Supplemental Content