---
id: useIsMutating
title: useIsMutating
---

# Function: useIsMutating()

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

## Parameters

### filters?

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

### queryClient?

`QueryClient`

## Returns

`Readable`\<`number`\>

## Defined in

[packages/svelte-query/src/useIsMutating.ts:7](https://github.com/TanStack/query/blob/main/packages/svelte-query/src/useIsMutating.ts#L7)