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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

Using the Set class

Now that we have finished implementing our set data structure, let's take a look at how we can use it. Let's give it a try and execute some commands to test our Set class, as follows:

const set = new Set(); 
 
set.add(1); 
console.log(set.values()); // outputs [1] 
console.log(set.has(1));   // outputs true 
console.log(set.size());   // outputs 1 
 
set.add(2); 
console.log(set.values()); // outputs [1, 2] 
console.log(set.has(2));   // true 
console.log(set.size());   // 2 
 
set.delete(1); 
console.log(set.values()); // outputs [2] 
 
set.delete(2); 
console.log(set.values()); // outputs [] 

So, now we have a very similar implementation of the Set class, as in ECMAScript 2015.

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Learning JavaScript Data Structures and Algorithms

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Loiane Avancini

Publisher Resources

ISBN: 9781788623872Supplemental Content