[typedef] What is ETA of the typedef rule?

[takuma7]

I'm thinking of migrating from TSLint to ESLint. Reading the roadmap, I realized the typedef rule is still "unimplemented".

Is there any plan to implement this rule? If yes, do we have any ETA?

Thank you!

[bradzacher]

If I'm understanding that rule, then it looks like it can be "implemented" as follows:

• turn on noImplicitAny in your tsconfig.
• turn on our rule @typescript-eslint/explicit-function-return-type.

There are a two options not covered by the above though: object-destructuring and array-destructuring.
Happy for someone to add those in if they want, but I see those as a low value additions - it's a type pattern that i've never actually seen used before.

[gruckion]

@bradzacher a follow up to the above reference, we are using the suggested and it appears to cover our use case.

[bradzacher]

As an FYI there is an open PR to add the typedef rule (#581).
It is under discussion though.