support show NaN in detail table (#2183)

* support final result is NaN in webui

* delete unuseful change

* show NaN rather than NaN(latest)
Co-authored-by: Lijiao <15910218274@163.com>

src/webui/src/static/function.ts

@@ -77,8 +77,10 @@ const getFinal = (final?: MetricDataRecord[]): FinalType | undefined => {
     if (final) {
         showDefault = parseMetrics(final[final.length - 1].data);
         if (typeof showDefault === 'number') {
-            showDefault = { default: showDefault };
-            return showDefault;
+            if(!isNaN(showDefault)){
+                showDefault = { default: showDefault };
+                return showDefault;
+            }
         } else if (isArrayType(showDefault)) {
             // not support final type
             return undefined;

src/webui/src/static/model/trial.ts

@@ -211,13 +211,21 @@ class Trial implements TableObj {
 
     public formatLatestAccuracy(): string {  // TODO: this should be private
         if (this.accuracy !== undefined) {
-            return `${formatAccuracy(this.accuracy)} (FINAL)`;
+            if (isNaN(this.accuracy)) {
+                return this.accuracy.toString();
+            } else {
+                return `${formatAccuracy(this.accuracy)} (FINAL)`;
+            }
         } else if (this.intermediates.length === 0) {
             return '--';
         } else {
             // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
             const latest = this.intermediates[this.intermediates.length - 1]!;
-            return `${formatAccuracy(metricAccuracy(latest))} (LATEST)`;
+            if (isNaN(metricAccuracy(latest))) {
+                return 'NaN';
+            } else {
+                return `${formatAccuracy(metricAccuracy(latest))} (LATEST)`;
+            }
         }
     }
 }