[WebUI] Add intermediate result and optimize hyper-parameter graph

src/webui/src/components/Overview.tsx

@@ -2,10 +2,7 @@ import * as React from 'react';
 import axios from 'axios';
 import { Row, Col } from 'antd';
 import { MANAGER_IP } from '../static/const';
-import {
-    Experiment, TableObj,
-    Parameters, TrialNumber
-} from '../static/interface';
+import { Experiment, TableObj, Parameters, TrialNumber } from '../static/interface';
 import { getFinal } from '../static/function';
 import SuccessTable from './overview/SuccessTable';
 import Title1 from './overview/Title1';
@@ -117,7 +114,9 @@ class Overview extends React.Component<{}, OverviewState> {
                         clusterMetaData: clusterMetaData ? clusterMetaData : undefined
                     });
                     // search space format loguniform max and min
-                    const searchSpace = JSON.parse(sessionData.params.searchSpace);
+                    const temp = sessionData.params.searchSpace;
+                    const searchSpace = temp !== undefined
+                        ? JSON.parse(temp) : {};
                     Object.keys(searchSpace).map(item => {
                         const key = searchSpace[item]._type;
                         let value = searchSpace[item]._value;

src/webui/src/components/SlideBar.tsx

@@ -139,6 +139,7 @@ class SlideBar extends React.Component<{}, SliderState> {
         }
       });
   }
+
   getNNIversion = () => {
     axios(`${MANAGER_IP}/version`, {
       method: 'GET'
@@ -231,7 +232,6 @@ class SlideBar extends React.Component<{}, SliderState> {
           </a>
           <span className="version">Version: {version}</span>
         </Col>
-
       </Row>
     );
   }