Use option to add polyfill on demand for based on usage

coderitual · coderitual · commit ba3b3d40c58e · 2019-03-09T15:08:30.000+01:00
diff --git a/package.json b/package.json
@@ -37,7 +37,7 @@
       [
         "@babel/preset-env",
         {
-          "useBuiltIns": "entry"
+          "useBuiltIns": "usage"
         }
       ],
       "@babel/preset-react"
