问HTML5网络通知权限问题

EN

function createNotification(response){
  if(!('Notification' in window)){
    console.log("This browser does not Notification")
  }else{
    if(Notification.permission === 'granted'){
         createNotification(response) // function to createNotification from response
    }else if(Notification.permission !== 'denied'){
     Notification.requestPermission((permission) => {
       if(permission === 'granted'){
         createNotification(response)
       }
     })
 }



function createNotification(response){
    // Construct the Notification
    let title = response.sender_name
    let notificationOptions = {
        body: response.message,
        icon: default_profile_pic
    }

    // Close the Notification after 3 seconds
    let notification = new Notification(title, notificationOptions) 
    setTimeout(notification.close.bind(notification),3000)
}