Function getCss

site/demo.ts:95–110

(source: string)

  ) ?? 'src/main.js';

const getCss = (source: string): string => {
  let css = '';
  render(
    source,
    {syncImport: true, compress: true},
    (error: Error | null, result?: {css: string}) => {
      if (error != null) {
        throw error;
      }
      if (result != null) {
        css = result.css;
      }
    },
  );
  return css;
};

const getHtmlDoc = (html: string): string => html.trim();