Learning JavaScript? Download my free JavaScript Handbook 🔥

Creates or configures one object property.

Returns the object.

Takes 3 arguments. The first is an object upon which we’re going to create or configure the properties. The second is the property name defined as a string. The third is an object with the property definition.

Example:

const dog = {}
Object.defineProperty(dog, 'breed', {
  value: 'Siberian Husky'
})
console.log(dog.breed) //'Siberian Husky'

I didn’t just say breed: 'Siberian Husky' but I had to pass a property descriptor object, defined at the beginning of this page.



NEW

Follow my new project: From Zero to App

A video-based learning project where I create a React + GraphQL app from idea to deployment! 9 free videos already out!