# useIsMutating

# Function: useIsMutating()

```ts
function useIsMutating(filters?, queryClient?): ReactiveValue<number>;
```

Defined in: [packages/svelte-query/src/useIsMutating.svelte.ts:5](https://github.com/TanStack/query/blob/main/packages/svelte-query/src/useIsMutating.svelte.ts#L5)

## Parameters

### filters?

`MutationFilters`\<`unknown`, `Error`, `unknown`, `unknown`\>

### queryClient?

`QueryClient`

## Returns

`ReactiveValue`\<`number`\>