Event Logging in Javascript

event-logging-in-js.js

playVideo() {
  this.videoPlayer.play()
  // eventLogger calls out to the server, which adds data about the
  // user, their device, their school, etc. etc. etc.
  eventLogger.log(“Student started video”, {
    videoId: this.videoPlayer.videoId
  })
}

selectQuizAnswer(questionId, answerId) {
  updateQuestionState(questionId, answerId).then(() => {
    eventLogger.log(“Student chose quiz answer”, {
      questionId: questionId, 
      activityId: activityId
    });    
  })
}