In programming, an object is a data structure that contains both state (data) and behavior (methods). Objects are created from classes or prototypes, depending on the language. They encapsulate related information and functionality, helping developers build modular, reusable components. Objects form the foundation of object-oriented programming, enabling concepts like inheritance, polymorphism, and abstraction.
Why it matters
Objects help structure complex systems into manageable pieces, improving readability and maintainability. They also support modeling real-world entities, making program logic more intuitive. Understanding objects is essential for working with many languages, frameworks, and APIs.
Examples
A User object storing a name and email, with methods for updating the profile. Lessons across programming fundamentals—such as What Is a Function?—prepare learners for object-oriented design.