Test IndexedDB object store required arguments On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". dbname = "objectStore-required-arguments.html" indexedDB.deleteDatabase(dbname) indexedDB.open(dbname) objectStore = db.createObjectStore('foo'); PASS objectStore.put(); threw exception TypeError: Failed to execute 'put' on 'IDBObjectStore': 1 argument required, but only 0 present.. PASS objectStore.add(); threw exception TypeError: Failed to execute 'add' on 'IDBObjectStore': 1 argument required, but only 0 present.. PASS objectStore.delete(); threw exception TypeError: Failed to execute 'delete' on 'IDBObjectStore': 1 argument required, but only 0 present.. PASS objectStore.get(); threw exception TypeError: Failed to execute 'get' on 'IDBObjectStore': 1 argument required, but only 0 present.. PASS objectStore.createIndex(); threw exception TypeError: Failed to execute 'createIndex' on 'IDBObjectStore': 2 arguments required, but only 0 present.. PASS objectStore.createIndex('foo'); threw exception TypeError: Failed to execute 'createIndex' on 'IDBObjectStore': 2 arguments required, but only 1 present.. PASS objectStore.index(); threw exception TypeError: Failed to execute 'index' on 'IDBObjectStore': 1 argument required, but only 0 present.. PASS objectStore.deleteIndex(); threw exception TypeError: Failed to execute 'deleteIndex' on 'IDBObjectStore': 1 argument required, but only 0 present.. PASS successfullyParsed is true TEST COMPLETE