javascript - In Firebase when using push() How do I get the unique ID and store in my database

Question

I am pushing data in firebase, but i want to store unique id in my database also . can somebody tell me,how to push the data with unique id.

i am trying like this

  writeUserData() {
    var key= ref.push().key();
    var newData={
        id: key,
        websiteName: this.webname.value,
        username: this.username.value,
        password : this.password.value,
        websiteLink : this.weblink.value
    }
    firebase.database().ref().push(newData);
  }

error is "ReferenceError: ref is not defined"

Answer 1

Waitting for answers