You're reading from Learning JavaScript Data Structures and Algorithms Enhance your problem-solving skills in JavaScript and TypeScript

Product type Paperback

Published in Sep 2026

Publisher Packt

ISBN-13 9781836205395

Length 615 pages

Edition 4th Edition

Languages

JavaScript

Concepts

Data Structures and Algorithms

Author (1):

Loiane Groner

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Table of Contents (9) Chapters

Learning JavaScript Data Structures and Algorithms, Fourth Edition: Enhance your problem-solving skills in JavaScript and TypeScript

1 Introducing Data Structures and Algorithms in JavaScript FREE CHAPTER

2 Big O notation

3 Arrays

4 Stacks

5 Queues and Deques

6 Linked Lists

7 Sets

8 Dictionaries and Hashes

Exercises

We will resolve a few array exercises from LeetCode using the concepts we learned in this chapter.

Valid Parentheses

The first exercise we will resolve is the 20. Valid Parentheses problem available at

Input "()", output true.

Input "(]", output false.

An input string is valid if:

Open brackets must be closed by the same type of brackets.
Open brackets must be closed in the correct order.
Every close bracket has a corresponding open bracket of the same type.

The problem also provides three hints, which contain the logic we need to implement to resolve this problem:

Use a stack...

The rest of the chapter is locked

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Authors (1)

Loiane Groner

Loiane Groner has over 10 years of experience in developing enterprise applications. Currently, she works as a business analyst and a Java/HTML5/JavaScript developer at an American financial institution. She is passionate about technology, publishes articles on her blog, and has presented talks at conferences about Java, ExtJS, Cordova, Ionic, TypeScript and Angular. She is a Google Developer Expert in Web Technologies and Angular, and a Microsoft Most Valuable Professional in Visual Studio and Development Technologies. She has also authored other Packt books.

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