polygerrit-ui/app/behaviors/gr-anonymous-name-behavior/gr-anonymous-name-behavior.html

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<script>
(function(window) {
  'use strict';

  const ANONYMOUS_NAME = 'Anonymous';

  window.Gerrit = window.Gerrit || {};

  /** @polymerBehavior Gerrit.AnonymousNameBehavior */
  Gerrit.AnonymousNameBehavior = {
    /**
     * enableEmail when true enables to fallback to using email if
     * the account name is not avilable.
     */
    getUserName(config, account, enableEmail) {
      if (account && account.name) {
        return account.name;
      } else if (account && account.username) {
        return account.username;
      } else if (enableEmail && account && account.email) {
        return account.email;
      } else if (config && config.user &&
          config.user.anonymous_coward_name !== 'Anonymous Coward') {
        return config.user.anonymous_coward_name;
      }

      return ANONYMOUS_NAME;
    },
  };
})(window);
</script>