auth/phone-invisible.html [271:329]:
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        || !!window.signingIn;
  }

  /**
   * Updates the Verify-code button state depending on form values state.
   */
  function updateVerifyCodeButtonUI() {
    document.getElementById('verify-code-button').disabled =
        !!window.verifyingCode
        || !getCodeFromUserInput();
  }

  /**
   * Updates the state of the Sign-in form.
   */
  function updateSignInFormUI() {
    if (firebase.auth().currentUser || window.confirmationResult) {
      document.getElementById('sign-in-form').style.display = 'none';
    } else {
      resetReCaptcha();
      document.getElementById('sign-in-form').style.display = 'block';
    }
  }

  /**
   * Updates the state of the Verify code form.
   */
  function updateVerificationCodeFormUI() {
    if (!firebase.auth().currentUser && window.confirmationResult) {
      document.getElementById('verification-code-form').style.display = 'block';
    } else {
      document.getElementById('verification-code-form').style.display = 'none';
    }
  }

  /**
   * Updates the state of the Sign out button.
   */
  function updateSignOutButtonUI() {
    if (firebase.auth().currentUser) {
      document.getElementById('sign-out-button').style.display = 'block';
    } else {
      document.getElementById('sign-out-button').style.display = 'none';
    }
  }

  /**
   * Updates the Signed in user status panel.
   */
  function updateSignedInUserStatusUI() {
    var user = firebase.auth().currentUser;
    if (user) {
      document.getElementById('sign-in-status').textContent = 'Signed in';
      document.getElementById('account-details').textContent = JSON.stringify(user, null, '  ');
    } else {
      document.getElementById('sign-in-status').textContent = 'Signed out';
      document.getElementById('account-details').textContent = 'null';
    }
  }
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auth/phone-visible.html [292:350]:
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        || !!window.signingIn;
  }

  /**
   * Updates the Verify-code button state depending on form values state.
   */
  function updateVerifyCodeButtonUI() {
    document.getElementById('verify-code-button').disabled =
        !!window.verifyingCode
        || !getCodeFromUserInput();
  }

  /**
   * Updates the state of the Sign-in form.
   */
  function updateSignInFormUI() {
    if (firebase.auth().currentUser || window.confirmationResult) {
      document.getElementById('sign-in-form').style.display = 'none';
    } else {
      resetReCaptcha();
      document.getElementById('sign-in-form').style.display = 'block';
    }
  }

  /**
   * Updates the state of the Verify code form.
   */
  function updateVerificationCodeFormUI() {
    if (!firebase.auth().currentUser && window.confirmationResult) {
      document.getElementById('verification-code-form').style.display = 'block';
    } else {
      document.getElementById('verification-code-form').style.display = 'none';
    }
  }

  /**
   * Updates the state of the Sign out button.
   */
  function updateSignOutButtonUI() {
    if (firebase.auth().currentUser) {
      document.getElementById('sign-out-button').style.display = 'block';
    } else {
      document.getElementById('sign-out-button').style.display = 'none';
    }
  }

  /**
   * Updates the Signed in user status panel.
   */
  function updateSignedInUserStatusUI() {
    var user = firebase.auth().currentUser;
    if (user) {
      document.getElementById('sign-in-status').textContent = 'Signed in';
      document.getElementById('account-details').textContent = JSON.stringify(user, null, '  ');
    } else {
      document.getElementById('sign-in-status').textContent = 'Signed out';
      document.getElementById('account-details').textContent = 'null';
    }
  }
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