recover rollup demo

Author: OfirSimhi1612

rollup.demo.config.js

@@ -0,0 +1,21 @@
+import buble from '@rollup/plugin-buble';
+import nodeResolve from 'rollup-plugin-node-resolve';
+import commonJS from 'rollup-plugin-commonjs';
+export default {
+  input: 'demo.js',
+  output: {format: 'iife', file: 'demo_bundle.js'},
+  plugins: [
+    buble({
+      exclude: 'node_modules/**',
+      namedFunctionExpressions: false
+    }),
+    nodeResolve({
+      main: true,
+      browser: true
+    }),
+    commonJS({
+      include: '../**',
+      sourceMap: false
+    })
+  ]
+};