This website hosts a timed quiz of Javascript fundamental questions.

Click on the "Start Quiz" button, and you'll be racing the clock to finish your quiz. Your score will be determined by how quickly & accurately you answer. Be careful! Wrong answers receive a penalty to your time.

You can view the highscores of your session by clicking on "View Highscores" in the upper left hand corner of the welcome page. Once you finish the quiz, you can enter in your name to see save your scores on the board. When you want to clear the board, just click "Clear Highscores".