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Learning JavaScript Data Structures and Algorithms

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

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Product type Paperback
Published in Jul 2026
Last Updated in Sep 2025
Publisher Packt
ISBN-13 9781836205395
Length 615 pages
Edition 4th Edition
Languages
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Author (1):
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Loiane Groner Loiane Groner
Author Profile Icon Loiane Groner
Loiane Groner
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Table of Contents (9) Chapters Close

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

Creating the HashTable class

Our hash table implementation will be located in the src/08-dictionary-hash/hash-table.js file. We begin by defining the HashTable class:

class HashTable {
  #table = [];
}

This initial step simply initializes the private #table array, which will serve as the underlying storage for our key-value pairs.

Next, we will equip our HashTable class with three essential methods:

  1. put(key, value): this method either adds a new key-value pair to the hash table or updates the value associated with an existing key.
  2. remove(key): this method removes the value and its corresponding key from the hash table based on the provided key.
  3. get(key): this method retrieves the value associated with a specific key from the hash table.

To enable the functionality of these methods, we also need to create a crucial component: the hash function. This function will play a vital role in determining the storage location of each key-value pair within the hash table, making it a cornerstone...

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Programming languages
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