<script src="js/pouchdb-6.1.2.js"></script>
<script src="js/pouchdb.cordova-sqlite-2.0.2.js"></script>
<script>
  document.addEventListener('deviceready', function () {
    var db = new PouchDB('database.db', {adapter: 'cordova-sqlite'});
    db.post({}).then(function (res) {
      return db.get(res.id);
    }).then(function (doc) {
      alert('stored a document! ' + JSON.stringify(doc));
      alert('adapter is: ' + db.adapter);
      alert('SQLite plugin is installed?: ' + (!!window.sqlitePlugin));
    }).catch(console.log.bind(console));
  });
</script>