A nested object is an object that contains another object inside it. This allows you to store complex and structured data in a clear way.
In real-world applications, data is rarely simple. For example, a user may have an address object inside their profile, and a company may have multiple departments stored as objects.
Learning nested objects helps students work with real application data structures.
Where Nested Objects Are Used
- User profiles with address details
- Product details with specifications
- Company data with departments
- API responses and JSON data
- Settings and configurations
Nested objects help organize complex information.
Here, the user object contains another object called address.
This shows how data can be grouped in multiple levels.
To access data inside a nested object, you use dot or bracket notation step by step.
Each dot moves deeper into the structure.
This example shows how easy it is to update data inside nested objects.
By mastering nested objects, students gain the ability to work with complex real-world data and build professional JavaScript applications.