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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 toString method

The toString method converts the LinkedList object into a string. The following is the implementation of the toString method:

toString() {  if (this.head == null) { // {1}    return '';  }  let objString = `${this.head.element}`; // {2}  let current = this.head.next; // {3}  for (let i = 1; i < this.size() && current != null; i++) { // {4}    objString = `${objString},${current.element}`;    current = current.next;  }  return objString; // {5}}

First, if the list is empty (head will be null or undefined), we return an empty string ({1}). We can also use if (this.isEmpty()) for this verification.

If the list is not empty, we will initialize the string that will be returned at the end of the method (objString) with the first element's value ...

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Learning JavaScript Data Structures and Algorithms

Learning JavaScript Data Structures and Algorithms

Loiane Avancini

Publisher Resources

ISBN: 9781788623872Supplemental Content