Learn how to describe exactly what an object should contain and catch mistakes before runtime.
Objects are everywhere in JavaScript, and TypeScript lets you describe their exact structure. You can define which properties exist, what types they contain, and whether those properties are required or optional.
Object types are used to describe real-world data such as users, products, API responses, and configuration objects. As your types become more complex, you can also work with nested objects, readonly properties, and dynamic keys.
What you'll walk away knowing
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