Why does `useReactTable` need `columns` and `data` to be mutable?

I was trying to use tanstack table for the first time, and my API is typed as deeply

readonly

readonly

readonly

readonly, and I'm surprised tanstack table seems to require "write permissions" on the

data

data

data

data and

columns

columns

columns

columns arrays

const { data } = useQuery(...)
//      ^? readonly Foo[]
useReactTable({
  data,
//^^^^ The type readonly Foo[] is not assignable to the mutable type Foo[]
})

const { data } = useQuery(...)
//      ^? readonly Foo[]
useReactTable({
  data,
//^^^^ The type readonly Foo[] is not assignable to the mutable type Foo[]
})

const { data } = useQuery(...)
//      ^? readonly Foo[]
useReactTable({
  data,
//^^^^ The type readonly Foo[] is not assignable to the mutable type Foo[]
})

const { data } = useQuery(...)
//      ^? readonly Foo[]
useReactTable({
  data,
//^^^^ The type readonly Foo[] is not assignable to the mutable type Foo[]
})

I know I often get annoyed myself when I have to write

readonly

readonly

readonly

readonly or

ReadonlyArray<>

ReadonlyArray<>

ReadonlyArray<>

ReadonlyArray<> everywhere in my types, so I'm hoping this is just the reason why it's "requesting write permissions", but maybe it's actually mutating the arrays?

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Why does `useReactTable` need `columns` and `data` to be mutable?

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