From 90f07438caa493f42eb8b533debf8f67d7d0b2b7 Mon Sep 17 00:00:00 2001
From: Tim Yung <yungsters@fb.com>
Date: Wed, 28 Jun 2023 10:51:30 -0700
Subject: [PATCH] idx: Fix Flow type error

---
 packages/idx/src/idx.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/idx/src/idx.js b/packages/idx/src/idx.js
index 2bf5c3f..89eda01 100644
--- a/packages/idx/src/idx.js
+++ b/packages/idx/src/idx.js
@@ -60,9 +60,9 @@ function idx<Ti, Tv>(input: Ti, accessor: (input: Ti) => Tv): ?Tv {
     return accessor(input);
   } catch (error) {
     if (error instanceof TypeError) {
-      if (nullPattern.test(error)) {
+      if (nullPattern.test(error.message)) {
         return null;
-      } else if (undefinedPattern.test(error)) {
+      } else if (undefinedPattern.test(error.message)) {
         return undefined;
       }
     }