accounts-ui/imports/ui/components/Fields.jsx

import React from 'react';
import { Accounts } from 'meteor/accounts-base';
import './Field.jsx';

export const Fields = ({ fields = {} }) => (
  <div className="fields">
    {Object.keys(fields).map((id, i) =>
      <Accounts.ui.Field {...fields[id]} key={i} />
    )}
  </div>
);

Accounts.ui.Fields = Fields;