title: how to achive resend OTP using firebase auth
body: <p>how can Resend OTP after 60 sec. using firebase library, currently using this<br>
  <a href="https://github.com/firebase/quickstart-js/blob/master/auth/phone-invisible.html" rel="nofollow noreferrer">https://github.com/firebase/quickstart-js/blob/master/auth/phone-invisible.html</a>  </p>
  
  <ol>
  <li><p>called this on first Send OTP </p>
  
  <pre><code>window.recaptchaVerifier = new firebase.auth.RecaptchaVerifier('sign-in-button', { 
  
  }); 
  </code></pre>
  
  <p>Working fine its sending first OTP. but i have added timer if 60 sec. cross. it will Resend OTP button</p>
  
  <p>not its not send Next OTP so how can I achvie That?</p></li>
  <li><p>On Resend OTP click calling Same </p>
  
  <pre><code>window.recaptchaVerifier = new firebase.auth.RecaptchaVerifier('sign-in-button', { 
  
  });
  </code></pre></li>
  </ol>