fix: add undefined initial value to Atom definition

pmndrs · Jul 20, 2024 · 65fd147 · 65fd147
1 parent debff8b
commit 65fd147
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/vanilla/atom.ts b/src/vanilla/atom.ts
@@ -75,6 +75,11 @@ export function atom<Value, Args extends unknown[], Result>(
 // read-only derived atom
 export function atom<Value>(read: Read<Value>): Atom<Value>
 
+// Value with default as initial value
+export function atom<Value = undefined>(
+  read: Read<Value | undefined>,
+): Atom<Value | undefined>
+
 // write-only derived atom
 export function atom<Value, Args extends unknown[], Result>(
   initialValue: Value,