populateCache: undefined for currentData

vercel · May 13, 2022 · 1dca126 · 1dca126
1 parent 73e67a4
commit 1dca126
Show file tree

Hide file tree

Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/src/types.ts b/src/types.ts
@@ -144,7 +144,7 @@ export type MutatorCallback<Data = any> = (
 
 export type MutatorOptions<Data = any> = {
   revalidate?: boolean
-  populateCache?: boolean | ((result: any, currentData: Data) => Data)
+  populateCache?: boolean | ((result: any, currentData?: Data) => Data)
   optimisticData?: Data | ((currentData?: Data) => Data)
   rollbackOnError?: boolean
 }

diff --git a/src/utils/mutate.ts b/src/utils/mutate.ts
@@ -100,7 +100,7 @@ export const internalMutate = async <Data>(
   if (populateCache) {
     if (!error) {
       // Transform the result into data.
-      if (isFunction(populateCache) && originalData) {
+      if (isFunction(populateCache)) {
         data = populateCache(data, originalData)
       }