Required types

Firstly, apologies if this isn’t an actual issue and is instead related to my naivety as to how to properly use the library.

Secondly, this is a great library.

My issue is relating to determining that a type is required, and not ever undefined, as far as the Typescript compiler is concerned.

If I have some code:

const testDecoder = object({ success: boolean });

TS determines the type to be:

Decoder<{
    success?: boolean;
}, unknown>

My question is, how can I have typescript infer that the key success is not optional?

[dam5s]

I just had the same issue and fixed it by setting strict: true option in my typescript configuration.

[OliverRadini]

Thanks for getting back to me; the example in that issue works fine for me, which is great, I’ll have a look at the code I have and attempt to see what the difference is, thanks!