title: how to remove one item from firebase example, I want to remove just "childid1" from children
body: <p><img src="https://i.stack.imgur.com/EmEGl.png" alt="enter image description here" />
  I want to remove the string &quot;childid1&quot; from the list containing &quot;chilidid1,childid2,childid3,...&quot;
  From firebase realtime</p>
  <p>I want to remove the string &quot;childid1&quot; from the list containing &quot;chilidid1,childid2,childid3,...&quot;
  From firebase realtime</p>