function check()

in tool/build-example.js [118:131]

• 13 lines of code
• 3 McCabe index (conditional complexity)

      function check() {
        if (fs.existsSync(webmFile)) {
          resolve();
          return;
        }
        timeout += 100;
        if (timeout >= 20000 + +videoEnd) {
          console.error(fileBase + '.webm download timeout.');
          resolve();
          return;
        }

        setTimeout(check, 100);
      }