The commit() method of the IDBTransaction interface commits the transaction if it is called on an active transaction.

Note that commit() doesn't normally have to be called — a transaction will automatically commit when all outstanding requests have been satisfied and no new requests have been made. commit() can be used to start the commit process without waiting for events from outstanding requests to be dispatched.

If it is called on a transaction that is not active, it throws an InvalidStateError DOMException.

Note: This feature is available in Web Workers.





Return value



Exception Description
InvalidStateError The transaction state is not active.


// open a read/write db transaction, ready for adding the data
var transaction = db.transaction(["myDB"], "readwrite");

// report on the success of opening the transaction
transaction.oncomplete = function(event) {
  note.innerHTML += '<li>Transaction completed: database modification finished.</li>';

transaction.onerror = function(event) {
  note.innerHTML += '<li>Transaction not opened due to error. Duplicate items not allowed.</li>';

// create an object store on the transaction
var objectStore = transaction.objectStore("myObjStore");

// add our newItem object to the object store
var objectStoreRequest = objectStore.add(newItem[0]);

objectStoreRequest.onsuccess = function(event) {
  // report the success of the request (this does not mean the item
  // has been stored successfully in the DB - for that you need transaction.onsuccess)
  note.innerHTML += '<li>Request successful.</li>';

// Force the changes to be committed to the database asap


Specification Status Comment
Indexed Database API Draft
The definition of 'IDBTransaction.commit()' in that specification.
Recommendation Unitial definition.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
commitChrome Full support 76Edge Full support 79Firefox Full support 74IE No support NoOpera Full support 63Safari No support NoWebView Android Full support 76Chrome Android Full support 76Firefox Android No support NoOpera Android Full support 54Safari iOS No support NoSamsung Internet Android Full support 12.0


Full support  
Full support
No support  
No support

See also