build bootstrap in esm

js/index.esm.js

@@ -0,0 +1,32 @@
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.3.1): index.esm.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+import Alert from './src/alert'
+import Button from './src/button'
+import Carousel from './src/carousel'
+import Collapse from './src/collapse'
+import Dropdown from './src/dropdown'
+import Modal from './src/modal'
+import Popover from './src/popover'
+import ScrollSpy from './src/scrollspy'
+import Tab from './src/tab'
+import Toast from './src/toast'
+import Tooltip from './src/tooltip'
+
+export {
+  Alert,
+  Button,
+  Carousel,
+  Collapse,
+  Dropdown,
+  Modal,
+  Popover,
+  ScrollSpy,
+  Tab,
+  Toast,
+  Tooltip
+}

js/index.umd.js

@@ -0,0 +1,32 @@
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.3.1): index.umd.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+import Alert from './src/alert'
+import Button from './src/button'
+import Carousel from './src/carousel'
+import Collapse from './src/collapse'
+import Dropdown from './src/dropdown'
+import Modal from './src/modal'
+import Popover from './src/popover'
+import ScrollSpy from './src/scrollspy'
+import Tab from './src/tab'
+import Toast from './src/toast'
+import Tooltip from './src/tooltip'
+
+export default {
+  Alert,
+  Button,
+  Carousel,
+  Collapse,
+  Dropdown,
+  Modal,
+  Popover,
+  ScrollSpy,
+  Tab,
+  Toast,
+  Tooltip
+}

js/src/index.js

@@ -1,32 +0,0 @@
-/**
- * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): index.js
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- * --------------------------------------------------------------------------
- */
-
-import Alert from './alert'
-import Button from './button'
-import Carousel from './carousel'
-import Collapse from './collapse'
-import Dropdown from './dropdown'
-import Modal from './modal'
-import Popover from './popover'
-import ScrollSpy from './scrollspy'
-import Tab from './tab'
-import Toast from './toast'
-import Tooltip from './tooltip'
-
-export {
-  Alert,
-  Button,
-  Carousel,
-  Collapse,
-  Dropdown,
-  Modal,
-  Popover,
-  ScrollSpy,
-  Tab,
-  Toast,
-  Tooltip
-}

js/tests/integration/bundle.js

@@ -1,7 +1,9 @@
 import 'popper.js'
-import bootstrap from '../../../dist/js/bootstrap'
+import {
+  Tooltip
+} from '../../../dist/js/bootstrap.esm.js'
 
 window.addEventListener('load', () => {
   [...document.querySelectorAll('[data-toggle="tooltip"]')]
-    .map(tooltipNode => new bootstrap.Tooltip(tooltipNode))
+    .map(tooltipNode => new Tooltip(tooltipNode))
 })

js/tests/integration/rollup.bundle.js

@@ -1,7 +1,6 @@
 /* eslint-env node */
 
 const resolve = require('rollup-plugin-node-resolve')
-const commonjs = require('rollup-plugin-commonjs')
 const babel = require('rollup-plugin-babel')
 
 module.exports = {
@@ -12,7 +11,6 @@ module.exports = {
   },
   plugins: [
     resolve(),
-    commonjs(),
     babel({
       exclude: 'node_modules/**'
     })