From 781beb7eb5d54db1efe2d899b8bfef4b93637ba4 Mon Sep 17 00:00:00 2001
From: Kevin Van Cott <kevinvandy656@gmail.com>
Date: Sun, 26 Mar 2023 17:57:51 -0500
Subject: [PATCH] fix: prevent toLowerCase() is not a function filterFn
 error(#4776)

---
 packages/table-core/src/filterFns.ts | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/packages/table-core/src/filterFns.ts b/packages/table-core/src/filterFns.ts
index bd41f05b8a..1c0595bb22 100644
--- a/packages/table-core/src/filterFns.ts
+++ b/packages/table-core/src/filterFns.ts
@@ -6,7 +6,13 @@ const includesString: FilterFn<any> = (
   filterValue: string
 ) => {
   const search = filterValue.toLowerCase()
-  return Boolean(row.getValue<string>(columnId)?.toLowerCase().includes(search))
+  return Boolean(
+    row
+      .getValue<string | null>(columnId)
+      ?.toString()
+      ?.toLowerCase()
+      .includes(search)
+  )
 }
 
 includesString.autoRemove = (val: any) => testFalsey(val)
@@ -16,7 +22,9 @@ const includesStringSensitive: FilterFn<any> = (
   columnId: string,
   filterValue: string
 ) => {
-  return Boolean(row.getValue<string>(columnId)?.includes(filterValue))
+  return Boolean(
+    row.getValue<string | null>(columnId)?.toString()?.includes(filterValue)
+  )
 }
 
 includesStringSensitive.autoRemove = (val: any) => testFalsey(val)
@@ -27,7 +35,8 @@ const equalsString: FilterFn<any> = (
   filterValue: string
 ) => {
   return (
-    row.getValue<string>(columnId)?.toLowerCase() === filterValue.toLowerCase()
+    row.getValue<string | null>(columnId)?.toString()?.toLowerCase() ===
+    filterValue?.toLowerCase()
   )
 }