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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

Object-oriented programming with classes

ES2015 also introduced a cleaner way of declaring classes. You learned that we can declare a class named Book in the object-oriented programming section this way:

function Book(title, pages, isbn) { // {1} 
  this.title = title; 
  this.pages = pages; 
  this.isbn = isbn; 
}  
Book.prototype.printTitle = function() { 
  console.log(this.title); 
}; 

With ES2015, we can simplify the syntax and use the following code:

class Book { // {2}
  constructor(title, pages, isbn) { 
    this.title = title; 
    this.pages = pages; 
    this.isbn = isbn; 
  } 
  printIsbn() { 
    console.log(this.isbn); 
  } 
} 

We can simply use the keyword class and declare a class with a constructor function and other functions as well—for example, the printIsbn function. ...

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Learning JavaScript Data Structures and Algorithms

Learning JavaScript Data Structures and Algorithms

Loiane Avancini

Publisher Resources

ISBN: 9781788623872Supplemental Content