From 26cb575a543ce906846be54502f5c0d15bbf0ee7 Mon Sep 17 00:00:00 2001
From: Tom Hubrecht <tom.hubrecht@ens.fr>
Date: Mon, 10 Oct 2022 18:20:54 +0200
Subject: [PATCH] Don't try to show a tooltip when no title is defined

---
 src/App.svelte | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/App.svelte b/src/App.svelte
index 634759f..611fc65 100644
--- a/src/App.svelte
+++ b/src/App.svelte
@@ -129,11 +129,14 @@
     progressiveEventRendering: true,
     expandRows: true,
     eventDidMount: info => {
-      new Tooltip(info.el, {
-        title: info.event.extendedProps.short_name,
-        trigger: 'hover',
-        placement: 'top'
-      });
+      const title = info.event.extendedProps.short_name;
+      if (title !== undefined) {
+        new Tooltip(info.el, {
+          title: title,
+          trigger: 'hover',
+          placement: 'top'
+        });
+      }
     },
     viewDidMount: arg => {
       spinner = new Spinner({