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by srcreigh
1709 days ago
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TIL, interfaces can extend classes in TypeScript. [0] If interfaces could not extend classes, that would be a reason to use type programming. Another reason could be a generic interface. If you have a lifecycle where a type is mutable at one point but immutable at later points, you could use mapped types to enforce those constraints on the class methods generically. [0]: https://www.typescriptlang.org/play?#code/MYGwhgzhAEAKCmAnCB... |
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