Lära Getters in Classes | Inheritance and Encapsulation

When you want to control how a property is accessed in a class, you can use a getter method. Getters allow you to define special methods that are accessed like properties, using the get keyword. This lets you compute a value, validate data, or even hide internal implementation details, all while letting users of your class interact with the property as if it were a regular field. With getters, you can make your classes safer and more flexible by controlling what happens when someone tries to read a property.


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class Product {
  constructor(name, priceCents) {
    this.name = name;
    this._priceCents = priceCents;
  }

  get price() {
    return (this._priceCents / 100).toFixed(2);
  }
}

const item = new Product("Headphones", 2599);
console.log(item.price); // "25.99"

Var allt tydligt?

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Avsnitt 2. Kapitel 5

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              12345678910111213
            
class Product {
  constructor(name, priceCents) {
    this.name = name;
    this._priceCents = priceCents;
  }

  get price() {
    return (this._priceCents / 100).toFixed(2);
  }
}

const item = new Product("Headphones", 2599);
console.log(item.price); // "25.99"

Var allt tydligt?

Tack för dina kommentarer!

Avsnitt 2. Kapitel 5