How to delete/remove nodes on Firebase

Question

I\'m using Firebase for a web app. It\'s written in plain Javascript using no external libraries.

I can \"push\" and retrieve data with \'.on(\"child_added\")\', but

Answer 1

To remove a record.

 var db = firebase.database();                   
 var ref = db.ref(); 
 var survey=db.ref(path+'/'+path);    //Eg path is company/employee                
 survey.child(key).remove();          //Eg key is employee id