Setters & Getters

JavaScript has a special syntax for making getter methods

class Person {
  constructor(first, last) { 
    this.first = first; 
    this.last = last;
  }

  get fullName() { 
    return `${this.first} ${this.last}`;
  }
}

const teacher = new Person('Yinzhi', 'Cao');

console.log(teacher.fullName); 

• A getter method is a method with no parameters, declared with the keyword get.
• It can also be used in object literal.
• Call getters without parentheses!
• Think of a getter as a dynamically computed property.

Likewise, there is a special syntax for setter methods.

class Person {
  get fullName() { 
    return `${this.first} ${this.last}`;
  }

  set fullName(value) {
    const parts = value.split(" ");
    this.first = parts[0];
    this.last = parts[1];
  }
}

const teacher = new Person();
teacher.fullname = "Yinzhi Cao";

console.log(teacher.fullname);

• A setter method is a method with one parameter, declared with the keyword set.
• It can also be used in object literal.
• Setters are invoked through assignment to property.

Getters/setters look like fields, act like methods.