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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
426 pages
10h 19m
English
Packt Publishing
Content preview from Learning JavaScript Data Structures and Algorithms - Third Edition

Removing a value from the hash table

The last method we will implement for the HashTable is the remove method, which is as follows:

remove(key) {  const hash = this.hashCode(key); // {1}  const valuePair = this.table[hash]; // {2}  if (valuePair != null) {     delete this.table[hash]; // {3}    return true;  }  return false;} 

To remove a value from the HashTable, first, we need to know what position we need to access, so we retrieve the hash using the hashCode function ({1}). We retrieve the valuePair stored in the hash position ({2}) and in case the valuePair is not null or undefined, we remove it using the JavaScript delete operator ({3}). We also return true if the removal was successful and false otherwise.

Instead of using the delete JavaScript ...
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Learning JavaScript Data Structures and Algorithms - Second Edition

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Publisher Resources

ISBN: 9781788623872