From d08f761cec4b1cb151dbeb3434d6c2a725e0bd18 Mon Sep 17 00:00:00 2001
From: Henry Brown <26250092+HenryBrown0@users.noreply.github.com>
Date: Wed, 27 Sep 2023 05:06:52 +0100
Subject: [PATCH] fix: check key exisits before accessing

Co-authored-by: Jordan Harband <ljharb@gmail.com>
---
 lib/rules/function-component-definition.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/rules/function-component-definition.js b/lib/rules/function-component-definition.js
index 02b21bf608..f8a95a9da0 100644
--- a/lib/rules/function-component-definition.js
+++ b/lib/rules/function-component-definition.js
@@ -34,11 +34,11 @@ const UNNAMED_FUNCTION_TEMPLATES = {
 
 function hasOneUnconstrainedTypeParam(node) {
   const nodeTypeParams = node.typeParameters;
-  if (!nodeTypeParams) {
-    return false;
-  }
 
-  return nodeTypeParams.params.length === 1 && !nodeTypeParams.params[0].constraint;
+  return nodeTypeParams
+    && nodeTypeParams.params
+    && nodeTypeParams.params.length === 1
+    && !nodeTypeParams.params[0].constraint;
 }
 
 function hasName(node) {