ES6 Use getters and setters

JavaScript
#1

Why are they using ‘_’ in this._autor = autor.

What is that??

class Book {
  constructor(author) {
    this._author = author;
  }
  // getter
  get writer(){
    return this._author;
  }
  // setter
  set writer(updatedAuthor){
    this._author = updatedAuthor;
  }
}
const lol = new Book('anonymous');
console.log(lol.writer);  // anonymous
lol.writer = 'wut';
console.log(lol.writer);  // wut
#2

In JavaScript, the first character must be a letter, or an underscore (_), or a dollar sign ($). Use of the underscore is one convention for naming an object’s property or method that is intended to be private in this case, nothing more.

#3

oh, thank you for the fast reply mate :star_struck:

#4

You’re welcome. :slight_smile:

I was curious and looked around… Airbnb actually has published a style guide that looks to be a good read, with more information here as well.

1 Like
#5