Added date support to OfflineQuery class (#1344)

* Added  date support to OfflineQuery class

* added integration test for offlineQuery  support

* Delete package-lock.json

* Create package.lock

* stupid patch

* package-lock.json fix

* package-lock.json updated once more

* npm 6 is needed for successfull build

Co-authored-by: Alexander Israel <>

Author: zanderisrael

integration/test/ParseLocalDatastoreTest.js

@@ -2727,6 +2727,12 @@ function runTest(controller) {
       q.fromLocalDatastore();
       objects = await q.find();
       assert.equal(objects.length, 1);
+
+      q = new Parse.Query(TestObject);
+      q.lessThanOrEqualTo('dateField', { $relativeTime: 'in 0 day' });
+      q.fromLocalDatastore();
+      objects = await q.find();
+      assert.equal(objects.length, 1);
     });
 
     it(`${controller.name} supports withinPolygon`, async () => {