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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

The put method

Let's go ahead and implement the three methods we need to overwrite. The first one will be the put method, as follows:

put(key, value) {  if (key != null && value != null) {    const position = this.hashCode(key);    if (this.table[position] == null) { // {1}      this.table[position] = new ValuePair(key, value); // {2}    } else {      let index = position + 1; // {3}      while (this.table[index] != null) { // {4}        index++; // {5}      }      this.table[index] = new ValuePair(key, value); // {6}    }    return true;  }  return false;}

As usual, we will start by getting the hash position generated by the hashCode method. Next, we will verify that the position has an element in it ({1}). If not (this is the easiest scenario), we will add the element to it ({2} - which ...

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Learning JavaScript Data Structures and Algorithms

Learning JavaScript Data Structures and Algorithms

Loiane Avancini

Publisher Resources

ISBN: 9781788623872Supplemental Content