Best of Modern JavaScript — __proto__ and Descriptors

Best of Modern JavaScript — __proto__ and Descriptors

Since 2015, JavaScript has improved immensely. It’s much more pleasant to use it now than ever. In this article, we’ll look at new OOP features in JavaScript.

Since 2015, JavaScript has improved immensely.

It’s much more pleasant to use it now than ever.

In this article, we’ll look at new OOP features in JavaScript.

The __proto__ Property

We can use the __proto__ property to get and set the prototype of an object easily.

For example, we can write:

Object.getPrototypeOf({ __proto__: null })

Then it’ll return null since we set the __proto__ property to null .

This doesn’t work with the string version of the key as it creates its own property:

Object.getPrototypeOf({ ['__proto__']: null })

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