useIsMutating
useIsMutating 是一个可选的 hook，它返回您的应用程序正在获取的 mutations 的 数量 (这对于应用范围的加载指示器很有用)。
tsx
import { useIsMutating } from '@tanstack/react-query'
// How many mutations are fetching?
const isMutating = useIsMutating()
// How many mutations matching the posts prefix are fetching?
const isMutatingPosts = useIsMutating({ mutationKey: ['posts'] })
import { useIsMutating } from '@tanstack/react-query'
// How many mutations are fetching?
const isMutating = useIsMutating()
// How many mutations matching the posts prefix are fetching?
const isMutatingPosts = useIsMutating({ mutationKey: ['posts'] })
选项
- filters?: MutationFilters: Mutation Filters
- queryClient?: QueryClient
- 使用此选项可以使用自定义 QueryClient。否则，将使用最近上下文中的 QueryClient。
Returns (返回)
- isMutating: number
- 将是您的应用程序当前正在获取的 mutations 的 数量。
