From 2d5a36c230bd0da70a9a2a2c81ce3772a1bf8b74 Mon Sep 17 00:00:00 2001
From: frankknoll <Knoll_Frank@web.de>
Date: Sat, 28 Jan 2023 23:19:55 +0100
Subject: [PATCH] refactoring

---
 docs/HistogramView.js | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/docs/HistogramView.js b/docs/HistogramView.js
index 4d33bdd5706..fe2336a4a2c 100644
--- a/docs/HistogramView.js
+++ b/docs/HistogramView.js
@@ -24,15 +24,14 @@ class HistogramView {
 
     #displayHistograms(histoDescrs) {
         for (const histoDescr of histoDescrs.histograms) {
-            const canvas = document.createElement("canvas");
-            this.#uiContainer.appendChild(canvas);
-            this.#displayHistogram(histoDescr, canvas);
+            this.#uiContainer.appendChild(this.#createHistogram(histoDescr).canvas);
         }
     }
 
-    #displayHistogram(histoDescr, canvas) {
+    #createHistogram(histoDescr) {
         // FK-TODO: brauchen Slider wie bei intensivstationen
-        new Chart(
+        const canvas = document.createElement("canvas");
+        return new Chart(
             canvas,
             {
                 type: 'bar',