From 89ad9d34e96a082c69cb0f2e336aa45715becd83 Mon Sep 17 00:00:00 2001
From: Tsu-ba-me <ynho.li.aa.e@gmail.com>
Date: Tue, 26 Jul 2022 18:41:01 -0400
Subject: [PATCH] fix(striker-ui): allow undefined in isEmpty element(s)

---
 striker-ui/lib/isEmpty.ts | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/striker-ui/lib/isEmpty.ts b/striker-ui/lib/isEmpty.ts
index 248ac067..d4cd34c8 100644
--- a/striker-ui/lib/isEmpty.ts
+++ b/striker-ui/lib/isEmpty.ts
@@ -1,14 +1,16 @@
 type MapToValueIsEmptyFunction = {
-  [TypeName in keyof MapToType]: (value: MapToType[TypeName]) => boolean;
+  [TypeName in keyof MapToType]: (
+    value: MapToType[TypeName] | undefined,
+  ) => boolean;
 };
 
 const MAP_TO_VALUE_IS_EMPTY_FUNCTION: MapToValueIsEmptyFunction = {
-  number: (value: number) => value === 0,
-  string: (value: string) => value.trim().length === 0,
+  number: (value = 0) => value === 0,
+  string: (value = '') => value.trim().length === 0,
 };
 
 const isEmpty = <TypeName extends keyof MapToType>(
-  values: Array<MapToType[TypeName]>,
+  values: Array<MapToType[TypeName] | undefined>,
   { not, fn = 'every' }: { not?: boolean; fn?: 'every' | 'some' } = {},
 ): boolean =>
   values[fn]((value) => {