Merge pull request #3 from Andarist/loose

Use babel loose mode

Author: erikras

.babelrc

@@ -1,20 +1,5 @@
 {
   "presets": [
-    [
-      "env",
-      {
-        "targets": {
-          "node": "8"
-        }
-      }
-    ],
-    "react",
-    "stage-2"
-  ],
-  "env": {
-    "test": {
-      "plugins": ["transform-react-jsx-source", "istanbul"]
-    }
-  },
-  "plugins": ["transform-flow-strip-types"]
+    "./.babelrc.js"
+  ]
 }

.babelrc.js

@@ -0,0 +1,16 @@
+const { NODE_ENV } = process.env
+const test = NODE_ENV === 'test'
+const loose = true
+
+module.exports = {
+  presets: [
+    ['env', test ? { loose, targets: { node: 8 } } : { loose, modules: false }],
+    'react',
+    'stage-2'
+  ],
+  plugins: [
+    'transform-flow-strip-types',
+    test && 'transform-react-jsx-source',
+    test && 'istanbul'
+  ].filter(Boolean)
+}

rollup.config.js

@@ -68,8 +68,6 @@ export default {
     umd && commonjs({ include: 'node_modules/**' }),
     babel({
       exclude: 'node_modules/**',
-      babelrc: false,
-      presets: [['env', { modules: false }], 'stage-2'],
       plugins: ['external-helpers']
     }),
     umd