Error- 'TData' is defined but never used.eslint@typescript-eslint/no-unused-vars

[kcalderon37]

Hi,

I'm encountering issues while declaring an interface and receiving errors related to TData and TValue. I followed the same structure as the example below:

import '@tanstack/react-table'

declare module '@tanstack/table-core' {
interface ColumnMeta<TData extends RowData, TValue> {
foo: string
}
}

The issues are like:

"All type parameters are unused.ts(6205)
'TData' is defined but never used.eslint@typescript-eslint/no-unused-vars
'TData' is defined but never used.eslintno-unused-vars
(type parameter) TData in ColumnMeta<TData extends unknown, TValue>"

the only solution for now is adding comment:
// eslint-disable-next-line @typescript-eslint/no-unused-vars, no-unused-vars

Im using version: 8.10.7. Is anyone else experiencing the same issue?

[kippo]

Yes I'm also facing this issue and like you I've had to ignore the issue. It would be nice if we could get this fixed.

[OmarZeidan]

I am wondering if any solution to this instead of adding the // eslint-disable-next-line @typescript-eslint/no-unused-vars

[erlandsona]

Upvoting same for me.

[GrahamWilsdon]

TData + TValue
defined but never used.eslint[@typescript-eslint/no-unused-vars](https://typescript-eslint.io/rules/no-unused-vars)

Still persisting in 8.20.5 from following docs advice

[nilsso]

I find that // eslint-disable-next-line @typescript-eslint/no-unused-vars doesn't hide the warning in neovim (I think because it's a hint and not an error?) so I just declaring a dummy never & TData & TValue attribute to get rid of it.

declare module '@tanstack/table-core' {
  interface ColumnMeta<TData extends RowData, TValue> {
    // ...
    _?: never & TData & TValue
  }
}