diff --git a/lib/react-component/babel.config.js b/lib/react-component/babel.config.js
index 258bf51..d2ac202 100755
--- a/lib/react-component/babel.config.js
+++ b/lib/react-component/babel.config.js
@@ -1,22 +1,22 @@
 module.exports = {
-  'presets': [
+  presets: [
     '@babel/preset-react',
     ['@babel/preset-env', {
-      'modules': false,
-      'useBuiltIns': false
-    }]
+      modules: false,
+      useBuiltIns: false, // 默认 corejs 2
+      targets: "> 0.05%, not dead"
+    }],
   ],
-  'plugins': [
+  plugins: [
     ['@babel/plugin-proposal-private-methods', { 'loose': true }],
     ['@babel/plugin-proposal-private-property-in-object', { 'loose': true }],
     ['@babel/plugin-proposal-class-properties', { 'loose': true }],
     ['@babel/plugin-proposal-decorators', { 'legacy': true }],
-    ['@babel/transform-runtime', {
-      'absoluteRuntime': false,
-      'corejs': false,
-      'helpers': false,
-      'regenerator': true,
-      'useESModules': false
+    ['@babel/plugin-transform-runtime', {
+      absoluteRuntime: false,
+      corejs: false,
+      helpers: true, // 默认 true，从 babel-runtimie 引入，而非每个模块 inline 代码
+      regenerator: true,
     }]
   ]
 }
\ No newline at end of file
diff --git a/lib/react-component/package.json b/lib/react-component/package.json
index ecfebc6..a4fc6b6 100644
--- a/lib/react-component/package.json
+++ b/lib/react-component/package.json
@@ -1,6 +1,6 @@
 {
   "name": "easyjs-react-component-lib",
-  "version": "1.0.2",
+  "version": "1.1.0",
   "description": "Building React Component By Webpack",
   "main": "dist/easy.js",
   "module": "src/index.js",
@@ -10,7 +10,8 @@
     "start": "concurrently \"npm run dev\" \"npm run server\"",
     "debug": "easy build test",
     "build": "easy build",
-    "server": "easy server -p 5000 -i example/index.html"
+    "server": "easy server -p 5000 -i example/index.html",
+    "prepublishOnly": "npm run build"
   },
   "peerDependencies": {
     "react": "^16.13.1",
@@ -18,8 +19,8 @@
   },
   "devDependencies": {
     "@babel/preset-react": "^7.9.4",
-    "@easy-team/easywebpack-cli": "^4.0.0",
-    "@easy-team/easywebpack-js": "4.0.0",
+    "easywebpack-cli": "^5.0.0",
+    "easywebpack-js": "^5.0.0-beta.1",
     "eslint": "^4.5.0",
     "eslint-config-eslint": "^4.0.0",
     "react": "^16.13.1",
diff --git a/lib/react-component/src/feature/feature.js b/lib/react-component/src/feature/feature.js
new file mode 100644
index 0000000..ad9213b
--- /dev/null
+++ b/lib/react-component/src/feature/feature.js
@@ -0,0 +1,10 @@
+async function arrayFromFeature(a, b)  {
+  const array = Array.from(a);
+  return await new Promise((resolve =>{
+    resolve(array.includes(b));
+  }))
+}
+
+export {
+  arrayFromFeature,
+}
\ No newline at end of file
diff --git a/lib/react-component/src/feature/index.js b/lib/react-component/src/feature/index.js
new file mode 100644
index 0000000..096b043
--- /dev/null
+++ b/lib/react-component/src/feature/index.js
@@ -0,0 +1,10 @@
+async function arrayIncludesFeature(a, b)  {
+  const array = new Array(...a);
+  return await new Promise((resolve =>{
+    resolve(array.includes(b));
+  }))
+}
+
+export {
+  arrayIncludesFeature,
+}
\ No newline at end of file
diff --git a/lib/react-component/src/index.js b/lib/react-component/src/index.js
index ee200ee..4db9eb9 100644
--- a/lib/react-component/src/index.js
+++ b/lib/react-component/src/index.js
@@ -1,16 +1,21 @@
 import Dialog from './dialog';
 import Toast from './toast';
-
+import { arrayIncludesFeature } from './feature/index'
+import { arrayFromFeature } from './feature/feature'
 // import { Dialog, Toast } from 'easyjs-react-component-lib';
 // import * as EasyComponentLib from 'easyjs-react-component-lib';
 export {
   Dialog,
-  Toast
+  Toast,
+  arrayIncludesFeature,
+  arrayFromFeature
 }
 
 // import EasyComponentLib from 'easyjs-react-component-lib';
 // const { Dialog, Toast } = EasyComponentLib;
-export default {
-  Dialog,
-  Toast
-}
\ No newline at end of file
+// export default {
+//   Dialog,
+//   Toast,
+//   arrayIncludesFeature,
+//   arrayFromFeature
+// }
\ No newline at end of file
diff --git a/lib/react-component/webpack.config.js b/lib/react-component/webpack.config.js
index ea2d233..74476fe 100644
--- a/lib/react-component/webpack.config.js
+++ b/lib/react-component/webpack.config.js
@@ -14,6 +14,7 @@ module.exports = {
     { imagemini: false} 
   ],
   customize(webpackConfig) {
+    console.log(webpackConfig.target);
     return webpackConfig;
   }
 };
\ No newline at end of file