Can types be merged in TypeScript?
Yes, TypeScript allows for type merging, especially with interfaces. You can define multiple interfaces with the same name, and TypeScript will merge them into a single interface.
Can you give me an example of merging interfaces?
Sure! If you have two interfaces like this: interface A { x: number; }
and interface A { y: string; }
, TypeScript will merge them into interface A { x: number; y: string; }
.
What about merging types instead of interfaces?
Types cannot be merged in the same way as interfaces, but you can use intersection types. For example, type A = { x: number; }
and type B = { y: string; }
can be combined as type C = A & B;
.
Are there any limitations to type merging?
Yes, merging types has limitations, such as not being able to merge type aliases directly. Interfaces are generally more flexible for merging.
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