Getters in Classes
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.
12345678910111213class 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"
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Can you explain how setters work in a similar way?
What are some common use cases for getters in JavaScript classes?
Can you show how to add validation when setting the price?
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Completion rate improved to 6.25Getters in Classes
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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.
12345678910111213class 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"
¡Gracias por tus comentarios!
