Experiment.jsx

import PropTypes from 'prop-types';

const Experiment = ({ isInTestGroup, renderA, renderB }) => {
  if (isInTestGroup) {
    return renderB();
  }
  return renderA();
};

Experiment.propTypes = {
  isInTestGroup: PropTypes.bool.isRequired,
  renderA: PropTypes.func.isRequired,
  renderB: PropTypes.func.isRequired,
};

export default Experiment;