From 371ad899f5601dd05f8b70787470c242c9b46c61 Mon Sep 17 00:00:00 2001
From: Philip Allgaier <mail@spacegaier.de>
Date: Tue, 29 Dec 2020 22:45:39 +0100
Subject: [PATCH] Handle sorting with "undefined" (move always to bottom)
 (#7985)

---
 src/components/data-table/sort_filter_worker.ts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/components/data-table/sort_filter_worker.ts b/src/components/data-table/sort_filter_worker.ts
index 1c04338a3c..01389feee3 100644
--- a/src/components/data-table/sort_filter_worker.ts
+++ b/src/components/data-table/sort_filter_worker.ts
@@ -58,6 +58,14 @@ const sortData = (
       valB = valB.toUpperCase();
     }
 
+    // Ensure "undefined" is always sorted to the bottom
+    if (valA === undefined && valB !== undefined) {
+      return 1;
+    }
+    if (valB === undefined && valA !== undefined) {
+      return -1;
+    }
+
     if (valA < valB) {
       return sort * -1;
     }