Access Object Properties in JavaScript

The value of object properties can be referenced and accessed using three different syntaxes based on the required use case.

The dot notation

To access and use the value of a property using its key, you can use the dot notation:

object.keyobject.key.nestedKey

Note: When working with nested keys, if any of the intermediate keys evaluates to null or undefined, JavaScript will throw a TypeError.

Example

Let's consider this object:

const landmark = {  name: 'Place du Trocadero',  type: 'View point',  location: {    address: 'Place du Trocadéro et du 11 Novembre, 75016 Paris, France',    coordinates: {      latitude: 48.8628402,      longitude: 2.287142