appease the pedants

frontend/src/metabase/visualizations/components/ChartSettings.jsx

@@ -76,13 +76,14 @@ class ChartSettings extends Component {
     }
 
     getChartTypeName(){
-      if (this.props.series[0].card.display === "table") {
-        return "table";
-      } else if (this.props.series[0].card.display === "scalar"){
-        return "number";
-      } else {
-        return "chart";
-      } 
+      switch(this.props.series[0].card.display){
+        case "table":
+          return "table";
+        case "scalar":
+          return "number";
+        default:
+          return "chart";
+      }
     }
 
 
@@ -99,12 +100,11 @@ class ChartSettings extends Component {
         const tabNames = Object.keys(tabs);
         const currentTab = this.state.currentTab || tabNames[0];
         const widgets = tabs[currentTab];
-        const chartTypeName = this.getChartTypeName();
         const isDirty = !_.isEqual(this.props.series[0].card.visualization_settings, this.state.settings);
 
         return (
           <div className="flex flex-column spread p4">
-              <h2 className="my2">Customize this {chartTypeName}</h2>
+              <h2 className="my2">Customize this {this.getChartTypeName()}</h2>
               { tabNames.length > 1 &&
                   <ChartSettingsTabs tabs={tabNames} selectTab={this.selectTab} activeTab={currentTab}/>
               }