From 3d56257b348f962c6993e6ded33584f7e070e52b Mon Sep 17 00:00:00 2001
From: Adela Almasan <88068998+adela-almasan@users.noreply.github.com>
Date: Wed, 8 May 2024 14:14:43 -0600
Subject: [PATCH] Timeseries: Fix incorrect threshold style (#87521)

---
 .../src/components/uPlot/config/UPlotThresholds.ts         | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/packages/grafana-ui/src/components/uPlot/config/UPlotThresholds.ts b/packages/grafana-ui/src/components/uPlot/config/UPlotThresholds.ts
index 56e17f47c3f..8be4df87406 100644
--- a/packages/grafana-ui/src/components/uPlot/config/UPlotThresholds.ts
+++ b/packages/grafana-ui/src/components/uPlot/config/UPlotThresholds.ts
@@ -22,7 +22,7 @@ export function getThresholdsDrawHook(options: UPlotThresholdOptions) {
     options.config.mode === GraphThresholdsStyleMode.Dashed ||
     options.config.mode === GraphThresholdsStyleMode.DashedAndArea
       ? [10, 10]
-      : null;
+      : [];
 
   function addLines(u: uPlot, yScaleKey: string, steps: Threshold[], theme: GrafanaTheme2) {
     let ctx = u.ctx;
@@ -39,10 +39,7 @@ export function getThresholdsDrawHook(options: UPlotThresholdOptions) {
     }
 
     ctx.lineWidth = 2;
-
-    if (dashSegments) {
-      ctx.setLineDash(dashSegments);
-    }
+    ctx.setLineDash(dashSegments);
 
     // Ignore the base -Infinity threshold by always starting on index 1
     for (let idx = 1; idx < steps.length; idx++) {