javascript setters & getters code example

Example 1: getters and setters javascript classes

// ES6 get and set
class Person {
  constructor(name) {
    this._name = name;
  }

  get name() {
    return this._name.toUpperCase();
  }

  set name(newName) {
    this._name = newName; // validation could be checked here such as only allowing non numerical values
  }

  walk() {
    console.log(this._name + ' is walking.');
  }
}

let bob = new Person('Bob');
console.log(bob.name); // Outputs 'BOB'

Example 2: js why to use getters and setters

1) Syntax reasons. It’s easier and faster to read code 
created with accessor functions
2) Encapsulation. I can create safer code with accessor functions.