update the date time check logic as suggested

Author: 任庆伟

src/shared/routes/Topcoder/ChallengeListing.jsx

@@ -7,6 +7,7 @@ import _ from 'lodash';
 import LoadingIndicator from 'components/LoadingIndicator';
 import qs from 'qs';
 import React from 'react';
+import moment from 'moment';
 import { SplitRoute } from 'utils/router';
 import { updateQuery } from 'utils/url';
 
@@ -20,9 +21,17 @@ export default function ChallengeListingRoute() {
           /* webpackChunkName: "challenge-listing" */
           'containers/challenge-listing/Listing',
         ).then(({ default: ChallengeListing }) => {
-          updateQuery({ });
           const query = renderProps.location.search ?
             qs.parse(renderProps.location.search.slice(1)) : null;
+          if (query.filter && query.filter.startDate
+          && !moment(query.filter.startDate).isValid()) {
+            delete query.filter.startDate;
+          }
+          if (query.filter && query.filter.endDate
+          && !moment(query.filter.endDate).isValid()) {
+            delete query.filter.endDate;
+          }
+          updateQuery({ filter: query.filter });
           const currencyFromUrl = _.get(query, 'currency');
           const prizeMode = currencyFromUrl && `money-${currencyFromUrl}`;
           return (

src/shared/utils/url.js

@@ -6,7 +6,6 @@
 
 import _ from 'lodash';
 import qs from 'qs';
-import moment from 'moment';
 
 /**
  * If executed client-side (determined in this case by the presence of global
@@ -29,14 +28,6 @@ export function updateQuery(update) {
     if (_.isUndefined(value)) delete query[key];
     else query[key] = value;
   });
-  if (!!query.filter && !!query.filter.startDate
-      && moment(query.filter.startDate).isValid() === false) {
-    delete query.filter.startDate;
-  } else if (!!query.filter && !!query.filter.endDate
-      && moment(query.filter.endDate).isValid() === false) {
-    delete query.filter.endDate;
-  }
-
   query = `?${qs.stringify(query, { encode: false })}`;
   window.history.replaceState(window.history.state, '', query);
 }