title: How to delete data in Firebase?
body: <p>I wanted to delete a key, but I have not been capable of achieve it. I'm trying with:</p>
  
  <pre><code>      ref.child("notifications").once("value", function(usersSnap) {
           var i = 0
           usersSnap.forEach(function(reciptsSnap) { //for every user
              reciptsSnap.forEach(function(reciptSnap) {
  
                    reciptSnap.forEach(function(c) {
  
  if (reciptSnap.key=="jkk....."){
  console.log("removed date nad its parent"+reciptSnap.key+" "+c.val())
  reciptSnap.key.remove()  //did not work brings remove is not a function
  }
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/dCmTu.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/dCmTu.png" alt="enter image description here"></a></p>