From 42810d1112da04740c52f8c666805b62e6ea45f6 Mon Sep 17 00:00:00 2001
From: Zacqary Xeper <zacqary.xeper@elastic.co>
Date: Tue, 9 Feb 2021 18:24:35 -0600
Subject: [PATCH] Fix type error

---
 .../infra/public/alerting/common/components/alert_preview.tsx   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/x-pack/plugins/infra/public/alerting/common/components/alert_preview.tsx b/x-pack/plugins/infra/public/alerting/common/components/alert_preview.tsx
index 0135e185e846a..57c6f695453ef 100644
--- a/x-pack/plugins/infra/public/alerting/common/components/alert_preview.tsx
+++ b/x-pack/plugins/infra/public/alerting/common/components/alert_preview.tsx
@@ -125,7 +125,7 @@ export const AlertPreview: React.FC<Props> = (props) => {
   }, [previewResult, showNoDataResults]);
 
   const hasWarningThreshold = useMemo(
-    () => alertParams.criteria?.some((c) => Reflect.has(c, 'warningThreshold')),
+    () => alertParams.criteria?.some((c) => Reflect.has(c, 'warningThreshold')) ?? false,
     [alertParams]
   );