TS error "unsafe assignment of type any" using `Route.useParams()`

export const Route = createFileRoute('/_user/learn/$lang/$id')({
    component: RouteComponent,
})

function RouteComponent() {
    const { lang, id } = Route.useParams()
    ...
}

export const Route = createFileRoute('/_user/learn/$lang/$id')({
    component: RouteComponent,
})

function RouteComponent() {
    const { lang, id } = Route.useParams()
    ...
}

In this case, it seems like my $lang and $id params should be typed automatically (I have registered the router, per these instructions), but I'm still getting this error: "Unsafe assignment of an

any

any

value." Any advice?

(Copilot says to change the useParams call to

Route.useParams<{ lang: string; id: string }>()

Route.useParams<{ lang: string; id: string }>()

which actually does fix some of the downstream TS errors, but creates its own TS error and also just seems wrong.)

TanStack•12mo ago•

4 replies

hidden-sapphire

TS error "unsafe assignment of type any" using `Route.useParams()`

export const Route = createFileRoute('/_user/learn/$lang/$id')({
    component: RouteComponent,
})

function RouteComponent() {
    const { lang, id } = Route.useParams()
    ...
}

export const Route = createFileRoute('/_user/learn/$lang/$id')({
    component: RouteComponent,
})

function RouteComponent() {
    const { lang, id } = Route.useParams()
    ...
}

In this case, it seems like my $lang and $id params should be typed automatically (I have registered the router, per these instructions), but I'm still getting this error: "Unsafe assignment of an

any

any

value." Any advice?

(Copilot says to change the useParams call to

Route.useParams<{ lang: string; id: string }>()

Route.useParams<{ lang: string; id: string }>()

which actually does fix some of the downstream TS errors, but creates its own TS error and also just seems wrong.)

TS error "unsafe assignment of type any" using `Route.useParams()`

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