code: function watch(done) {
    var mainWatcher = gulp.watch([
      'src/**/*.js',
      'modules/**/*.js',
      'test/spec/**/*.js',
      '!test/spec/loaders/**/*.js'
    ]);
    var loaderWatcher = gulp.watch([
      'loaders/**/*.js',
      'test/spec/loaders/**/*.js'
    ]);
  
    connect.server({
      https: argv.https,
      port: port,
      root: './',
      livereload: true
    });
  
    mainWatcher.on('all', gulp.series(clean, gulp.parallel(lint, 'build-bundle-dev', test)));
    loaderWatcher.on('all', gulp.series(lint));
    done();
  }
docs: Watch Task with Live Reload