fixed BarChartDataPoint format value

Author: Demonkratiy

.github/workflows/build.yml

@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [15.x]
+        node-version: [18.x]
 
     steps:
     - uses: actions/checkout@v2

CHANGELOG.md

@@ -2,6 +2,12 @@
 
 This page contains information about changes to the 'Sample bar chart' Power BI visual.
 
+## 4.0.0
+
+* Added *dynamic format* feature support
+* Migrated to ESlint
+* Updated dependencies
+
 ## 3.2.0
 
 * Added *modern tooltip* feature

src/barChart.ts

@@ -70,7 +70,7 @@ interface BarChartDataPoint {
     strokeColor: string;
     strokeWidth: number;
     selectionId: ISelectionId;
-    format: string;
+    format?: string;
 }
 
 /**
@@ -192,7 +192,7 @@ function visualTransform(options: VisualUpdateOptions, host: IVisualHost): BarCh
             selectionId,
             value: dataValue.values[i],
             category: `${category.values[i]}`,
-            format: <string>dataValue.objects[i].general.formatString,
+            format: dataValue.objects ? <string>dataValue.objects[i].general.formatString : null,
         });
     }