--- id: useMutationState title: useMutationState --- # Function: useMutationState() ```ts function useMutationState(options, queryClient?): TResult[]; ``` Defined in: [packages/svelte-query/src/useMutationState.svelte.ts:22](https://github.com/TanStack/query/blob/main/packages/svelte-query/src/useMutationState.svelte.ts#L22) ## Type Parameters ### TResult `TResult` = `MutationState`\<`unknown`, `Error`, `unknown`, `unknown`\> ## Parameters ### options [`MutationStateOptions`](../type-aliases/MutationStateOptions.md)\<`TResult`\> = `{}` ### queryClient? `QueryClient` ## Returns `TResult`[]