What are some examples of declaration merging in TypeScript?
An example of an AI chatbot conversation about TypeScript declaration merging concepts and examples.
What are some examples of declaration merging in TypeScript?
Declaration merging in TypeScript allows you to define multiple declarations for the same entity. For example, you can merge interfaces.
Can you show me a specific 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 one interface: interface A { x: number; y: string; }.
What about merging classes? Is that possible?
Yes, classes can also be merged. If you have two classes with the same name, TypeScript will combine their members into a single class.
Are there any limitations to declaration merging?
Yes, there are some limitations. For instance, merging types is not allowed, and you cannot merge a class with a type.
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