export const loadScript = {
  url: (url: string) => {
    return new Promise((resolve, reject) => {
      let script = document.createElement('script');
      script.type = 'text/javascript';
      script.src = url;
      script.addEventListener('load', () => resolve(script), false);
      script.addEventListener('error', () => reject(script), false);
      document.body.appendChild(script);
    });
  },
  urls: (urls: string[]) => {
    return Promise.all(urls.map(loadScript.url));
  },
};