using rollup

package.json

@@ -0,0 +1,17 @@
+{
+  "name": "js_read",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "start": "node ./build",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+  },
+  "dependencies": {
+    "rollup": "^0.34.10"
+  }
+}

rollup.config.js

@@ -0,0 +1,5 @@
+export default {
+  entry: 'index.js',
+  format: 'cjs',
+  dest: 'bundle.js' // equivalent to --output
+};