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Theo's Typesafe Cult•16mo ago

Why is TS dumb here?

https://www.typescriptlang.org/play?#code/MYGwhgzhAEDCDy8Ay0DeAoa0DaBrApgJ4Bc0EALgE4CWAdgOYC6pAFAG5ggCu+p5AFtQgBKaAF4AfGSp166AL7p0oSDHgBpaPgAe5fLQAmMBMjSZoIAPYh2nHsIxYswS7QjX8AOiv1b3fMLmWJT45FyUtNAARC7WUeaK8kA Basically, why does it type the method param as any when I declare what type it is in the parent class? Is there a way to make that work?

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4 Replies

b_e_n_t_e_n•16mo ago

It knows the proper type when it's incorrect...

erik.gh•16mo ago

i don't think that is possible

erik.gh•16mo ago

see: https://github.com/Microsoft/TypeScript/issues/23911

GitHub

Experiment with always using parameters from base types for derived...

Note some related issues for doing this with properties rather than methods: #3667, #6118, #1373. Goal We want to make it easier for users to derive types without rewriting the same parameter signa...

b_e_n_t_e_n•16mo ago

Ok thanks

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