How do I work with nested objects in JavaScript?

How do I work with nested objects in JavaScript?

In JavaScript, nested objects are objects within other objects. You can access them using dot notation or bracket notation.

Can you give me an example of a nested object?

Sure! Here's an example: const person = { name: 'John', address: { city: 'New York', zip: '10001' } }; You can access the city with person.address.city.

What if I want to add a new property to the nested object?

You can add a new property like this: person.address.country = 'USA'; Now the address object has a country property.

How do I loop through all properties of a nested object?

You can use a for...in loop. For example: for (let key in person) { console.log(key, person[key]); } This will log all properties, including nested ones.