Add Explicit Return Types to v3

[johnrom]

#2846 (comment)

[github-actions]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 60 days

[github-actions]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 60 days

[github-actions]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 60 days

[github-actions]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 60 days

[dantman]

I did a check over your v3 branch. Your use* state hooks don't use the [value, setValue] style of tuple that makes explicit return types mandatory.

So this isn't necessary to make hooks function, like it was for the original v3.

The TypeScript compilation process also outputs explicit types in the .d.ts so it's also not important for TypeScript performance.

[johnrom]

There were a few that did, like useFormikState, but I kept this in mind while building it.

Thanks for checking it out; I'll close this one.