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  • Book Overview & Buying Learning JavaScript Data Structures and Algorithms
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Learning JavaScript Data Structures and Algorithms

Learning JavaScript Data Structures and Algorithms - Fourth Edition

By : Loiane Groner
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Learning JavaScript Data Structures and Algorithms

Learning JavaScript Data Structures and Algorithms

By: Loiane Groner

Overview of this book

Data structures and algorithms are foundational topics for software developers. This easy-to-follow book from experienced developer and trainer Loiane Groner will help you to fill in the gaps in your knowledge – whether you’re a self-taught developer, you’re preparing for technical interviews, or you just want to write better code and improve your problem-solving skills. This fourth edition covers essential data structures, algorithms, and their usage in the context of JavaScript. You’ll follow examples in both JavaScript and TypeScript, in line with the latest standards and best practices, learning how to do complexity analysis along the way. New to this edition are LeetCode and HackerRank exercises at the end of each chapter, which you'll be guided through solving. You’ll also find brand-new chapters on the tries data structure, and string and math algorithms. By the end of the book, you will know how to develop programs using the best data structures and algorithms for the job.
Table of Contents (9 chapters)
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1
Learning JavaScript Data Structures and Algorithms, Fourth Edition: Enhance your problem-solving skills in JavaScript and TypeScript
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Learning JavaScript Data Structures and Algorithms, Fourth Edition: Enhance your problem-solving skills in JavaScript and TypeScript
2
1 Introducing Data Structures and Algorithms in JavaScript
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1 Introducing Data Structures and Algorithms in JavaScript
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The importance of data structures
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Why algorithms matter
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Why companies ask for these concepts during interviews
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Why choose JavaScript to learn data structures and algorithms?
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Setting up the environment
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JavaScript Fundamentals
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TypeScript fundamentals
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Summary
3
2 Big O notation
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2 Big O notation
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Understanding Big O notation
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Big O time complexities
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Space complexity
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Calculating the complexity of an algorithm
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Big O notation and tech interviews
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Exercises
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Summary
4
3 Arrays
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3 Arrays
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Why should we use arrays?
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Creating and initializing arrays
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Accessing elements and iterating an array
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Adding elements
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Removing elements
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Adding and removing elements from a specific position
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Iterator methods
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Searching an array
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Sorting elements
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Transforming an array
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References for other JavaScript array methods
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Two-dimensional arrays
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Multi-dimensional arrays
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The TypedArray class
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Arrays in TypeScript
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Creating a simple TODO list using arrays
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Exercises
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Summary
5
4 Stacks
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4 Stacks
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The stack data structure
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Creating an array-based Stack class
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Creating a JavaScript object-based Stack class
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Creating the Stack class using TypeScript
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Solving problems using stacks
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Exercises
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Summary
6
5 Queues and Deques
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5 Queues and Deques
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The queue data structure
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Creating the Queue class
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The deque data structure
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Creating the Deque class
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Creating the Queue and Deque classes in TypeScript
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Solving problems using queues and deques
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Exercises
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Summary
7
6 Linked Lists
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6 Linked Lists
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The linked list data structure
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Creating the LinkedList class
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Doubly linked lists
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Circular linked lists
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Creating a media player using a linked list
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Reviewing the efficiency of the linked lists
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Exercises
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Summary
8
7 Sets
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7 Sets
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The set data structure
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Creating the MySet class
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Performing mathematical operations with a set
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The JavaScript Set class
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Reviewing the efficiency of sets
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Exercises
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Summary
9
8 Dictionaries and Hashes
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8 Dictionaries and Hashes
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The dictionary data structure
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Creating the Dictionary class
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The JavaScript Map class
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The hash table data structure
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Creating the HashTable class
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The hash set data structure
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Maps and TypeScript
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Reviewing the efficiency of maps and hash maps
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Exercises
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Summary

Summary

In this chapter, we learned the importance of learning data structures and algorithms, and how it can make us better developers and help us pass technical job interviews in technology. We also reviewed reasons why we chose JavaScript to learn and apply these concepts.

You learned how to set up the development environment to be able to create or execute the examples in this book. We also covered the basics of the JavaScript language that are needed prior to getting started with developing the algorithms and data structures we will cover throughout the book.

We also covered a comprehensive introduction to TypeScript, showcasing its ability to enhance JavaScript with static typing and error checking for more reliable code. We explored essential concepts like interfaces, type inference, and generics, empowering us to write more robust and maintainable data structures and algorithms.

In the next chapter, we'll shift our focus to the critical topic of Big O notation, a fundamental...

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Learning JavaScript Data Structures and Algorithms
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