What is declaration merging in TypeScript?
An example of an AI chatbot conversation about declaration merging in TypeScript.
What is declaration merging in TypeScript?
Declaration merging is a feature in TypeScript that allows multiple declarations with the same name to be combined into a single definition.
Can you give me an example of declaration merging?
Sure! If you have an interface named 'User' declared twice, TypeScript will merge their properties into one interface.
What happens if the properties have different types?
If the properties have different types, TypeScript will create a union type for that property, allowing either type.
Are there any limitations to declaration merging?
Yes, declaration merging works well with interfaces and namespaces, but it has limitations with classes and enums.
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