Firebase DB - How to update particular value of child in Firebase Database
<p>I want to update my display name in the code below. How can I update <code>displayName</code>?</p>

<p>My database structure is:</p>

<pre>
-Users
      -KUanJA9egwmPsJCxXpv

         displayName:"Test Trainer"

         email:"test@gmail.com"

         uid: "jRXMsNZHR2exqifnR2rXcceEMxF2"
</pre>