chore: add a comment why fetcher accepts null (#918)

vercel · Jan 26, 2021 · 22ef8aa · 22ef8aa
1 parent 6907d42
commit 22ef8aa
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/types.ts b/src/types.ts
@@ -1,3 +1,5 @@
+// `null` is used for a hack to manage shared state with SWR
+// https://github.com/vercel/swr/pull/918
 export type fetcherFn<Data> = ((...args: any) => Data | Promise<Data>) | null
 export interface ConfigInterface<
   Data = any,