const React = require('react'); const Icon = React.createClass({ propTypes: { id: React.PropTypes.string, type: React.PropTypes.string, className: React.PropTypes.string }, getDefaultProps() { return { type: 'fa' }; }, render() { const { id, type } = this.props; let { className } = this.props; if (id) { className = 'GitBook-Icon ' + type + ' ' + type + '-' + id; } return ; } }); module.exports = Icon;