When should I use types or interfaces in TypeScript?

When should I use types or interfaces in TypeScript?

In TypeScript, you can use both types and interfaces to define the shape of objects. Generally, interfaces are preferred for defining object shapes, especially when you expect to extend them later.

Can you explain the differences between types and interfaces?

Sure! Interfaces are open to extension and can be merged, while types are more flexible and can represent any valid TypeScript type, including primitives, unions, and tuples.

Are there any performance differences between using types and interfaces?

No, there are no significant performance differences. The choice between types and interfaces is more about code organization and readability.

When should I prefer one over the other?

Prefer interfaces when defining object shapes that may need to be extended. Use types for more complex types or when you need union types.