Upgrade to Babel 7

Closes #2926
reduxjs · Sep 25, 2018 · b9ee1cf · b9ee1cf
1 parent 3acb007
commit b9ee1cf
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diff --git a/.babelrc b/.babelrc
diff --git a/.babelrc.js b/.babelrc.js
@@ -0,0 +1,22 @@
+const { NODE_ENV } = process.env
+
+module.exports = {
+  presets: [
+    [
+      '@babel/env',
+      {
+        targets: {
+          browsers: ['ie >= 11']
+        },
+        exclude: ['transform-async-to-generator', 'transform-regenerator'],
+        modules: false,
+        loose: true
+      }
+    ]
+  ],
+  plugins: [
+    // don't use `loose` mode here - need to copy symbols when spreading
+    '@babel/proposal-object-rest-spread',
+    NODE_ENV === 'test' && '@babel/transform-modules-commonjs'
+  ].filter(Boolean)
+}