improve code

config/playwright/rollup.config.js

@@ -29,7 +29,7 @@ module.exports = (testDir, onListening = null) => {
 
   return createRollupConfig({
     project: name,
-    mode: 'dev',
+    mode: 'build',
     paths: {
       dist,
       src: path.resolve(testDir, './'),
@@ -46,6 +46,7 @@ module.exports = (testDir, onListening = null) => {
       output: {
         sourcemap: true,
       },
+      treeshake: true,
       plugins: [
         rollupPluginStyles(),
         rollupPluginHtml(`Playwright: ${name}`, htmlName, () =>

config/rollup/pipeline.build.js

@@ -67,9 +67,11 @@ module.exports = (esm, options, { declarationFiles = false, outputStyle = false
           mangle: {
             safari10: true,
             keep_fnames: true, // eslint-disable-line camelcase
+            /*
             properties: {
               regex: /^_/,
             },
+            */
           },
           compress: {
             defaults: false,

config/rollup/pipeline.dev.js

@@ -27,15 +27,15 @@ module.exports = (options) => {
     output,
     ...rollupOptions,
     plugins: [
-      rollupScss(extractStyle),
       rollupAlias(alias),
-      rollupResolve(srcPath),
+      rollupScss(extractStyle),
       rollupEsBuild({
         include: /\.[jt]sx?$/,
         sourceMap: true,
         target: 'es6',
         tsconfig: './tsconfig.json',
       }),
+      rollupResolve(srcPath),
       rollupCommonjs(sourcemap),
       ...plugins,
     ].filter(Boolean),