From a4ba9253523755c979c53b5cab978f7afd2ba8a6 Mon Sep 17 00:00:00 2001
From: Michael Lumish <mlumish@google.com>
Date: Tue, 8 Aug 2023 10:37:20 -0700
Subject: [PATCH] grpc-js: Add null check in pick_first array access

---
 packages/grpc-js/src/load-balancer-pick-first.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/grpc-js/src/load-balancer-pick-first.ts b/packages/grpc-js/src/load-balancer-pick-first.ts
index 08971980b..37bc8e0ff 100644
--- a/packages/grpc-js/src/load-balancer-pick-first.ts
+++ b/packages/grpc-js/src/load-balancer-pick-first.ts
@@ -306,7 +306,7 @@ export class PickFirstLoadBalancer implements LoadBalancer {
           this.children[subchannelIndex].subchannel.getAddress()
       );
       process.nextTick(() => {
-        this.children[subchannelIndex].subchannel.startConnecting();
+        this.children[subchannelIndex]?.subchannel.startConnecting();
       });
     }
     this.connectionDelayTimeout = setTimeout(() => {