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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 delete and clear methods

Next, we will implement the delete method:

delete(element) {  if (this.has(element)) {    delete this.items[element]; // {1}    return true;  }  return false;}

In the delete method, we will verify whether the given element exists in the set. If this is positive, we will remove the element from the set ({1}) and return true to indicate that the element was removed; otherwise, we will return false.

Since we are using an object to store the items object of the set, we can simply use the delete operator to remove the property from the items object ({1}).

To use the Set class, we can use the following code as an example:

const set = new Set(); 
set.add(1); 
set.add(2); 

Just out of curiosity, if we output the this.tems property ...

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Learning JavaScript Data Structures and Algorithms

Learning JavaScript Data Structures and Algorithms

Loiane Avancini

Publisher Resources

ISBN: 9781788623872Supplemental Content