Show correct title in multi series pie chart example (#11962)

Co-authored-by: Jacco van den Berg <jacco@jem-id.nl>

diff --git a/docs/samples/other-charts/multi-series-pie.md b/docs/samples/other-charts/multi-series-pie.md
index 8332fc09bd2eb2f4b5efb7be84ad72137449a50d..66e8ce4bdde723f6cd8aaa59d1b95041361e48c1 100644 (file)
--- a/docs/samples/other-charts/multi-series-pie.md
+++ b/docs/samples/other-charts/multi-series-pie.md
@@ -74,9 +74,9 @@ const config = {
       },
       tooltip: {
         callbacks: {
-          label: function(context) {
-            const labelIndex = (context.datasetIndex * 2) + context.dataIndex;
-            return context.chart.data.labels[labelIndex] + ': ' + context.formattedValue;
+          title: function(context) {
+            const labelIndex = (context[0].datasetIndex * 2) + context[0].dataIndex;
+            return context[0].chart.data.labels[labelIndex] + ': ' + context[0].formattedValue;
           }
         }
       }