babel: improve perf.

2017-07-05 23:31:07 -07:00 · 2017-07-05 23:31:07 -07:00 · 1860064da0
commit 1860064da0
parent 3d65488108
1 changed files with 9 additions and 1 deletions
--- a/.babelrc
+++ b/.babelrc
@ -1,7 +1,15 @@
 {
-  "presets": ["es2017", "es2016", "es2015"],
+  "presets": [
+    ["es2017"],
+    ["es2016"],
+    ["es2015", {
+      "loose": true,
+      "spec": false
+    }]
+  ],
  "plugins": [
    ["transform-runtime", {
+      "helpers": true,
      "polyfill": true,
      "regenerator": true
    }]