fix(recipes): Allow undefined for variants (#1443)

vanilla-extract-css · Aug 17, 2024 · 2a7acc9 · 2a7acc9
1 parent e836691
commit 2a7acc9
Show file tree

Hide file tree

Showing 2 changed files with 8 additions and 1 deletion.
diff --git a/.changeset/tame-suits-refuse.md b/.changeset/tame-suits-refuse.md
@@ -0,0 +1,5 @@
+---
+'@vanilla-extract/recipes': patch
+---
+
+Enable passing `undefined` variant values to recipe functions when TypeScript's `exactOptionalPropertyTypes` is enabled.
diff --git a/packages/recipes/src/types.ts b/packages/recipes/src/types.ts
@@ -12,7 +12,9 @@ type BooleanMap<T> = T extends 'true' | 'false' ? boolean : T;
 
 export type VariantGroups = Record<string, VariantDefinitions>;
 export type VariantSelection<Variants extends VariantGroups> = {
-  [VariantGroup in keyof Variants]?: BooleanMap<keyof Variants[VariantGroup]>;
+  [VariantGroup in keyof Variants]?:
+    | BooleanMap<keyof Variants[VariantGroup]>
+    | undefined;
 };
 
 export type VariantsClassNames<Variants extends VariantGroups> = {