From 4978855d72aeaad20aa1e72e78cc07ef6acbd72a Mon Sep 17 00:00:00 2001
From: yiminghe <yiminghe@gmail.com>
Date: Sat, 26 Sep 2015 15:48:28 -0700
Subject: [PATCH] support es6.constants by default. Fixes #2932
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Summary: In javascriptcore(ios9), this code will run as expected(output 0 1):

```js
for(let i=0; i<2; i++) {
  const data = i;
  console.log(data);
}
```

But when debug in chrome, the above code will fail without `use strict` prologue (if you add prologue, rn will fail with red screen `Const declarations are not supported in strict mode`): https://code.google.com/p/v8/issues/detail?id=4432.

So it's better to transpile contant by default.

Closes https://github.com/facebook/react-native/pull/2955

Reviewed By: @​svcscm

Differential Revision: D2483398

Pulled By: @vjeux
---
 packager/react-packager/.babelrc | 3 +--
 packager/transformer.js          | 1 +
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/packager/react-packager/.babelrc b/packager/react-packager/.babelrc
index 6409e69a8..45e1d6e9f 100644
--- a/packager/react-packager/.babelrc
+++ b/packager/react-packager/.babelrc
@@ -6,9 +6,8 @@
   "whitelist": [
     "es6.arrowFunctions",
     "es6.blockScoping",
-    // This is the only place where we differ from transformer.js
-    "es6.constants",
     "es6.classes",
+    "es6.constants",
     "es6.destructuring",
     "es6.parameters",
     "es6.properties.computed",
diff --git a/packager/transformer.js b/packager/transformer.js
index 033ad5799..59a1ea44f 100644
--- a/packager/transformer.js
+++ b/packager/transformer.js
@@ -35,6 +35,7 @@ function transform(src, filename, options) {
       'es6.arrowFunctions',
       'es6.blockScoping',
       'es6.classes',
+      'es6.constants',
       'es6.destructuring',
       'es6.parameters',
       'es6.properties.computed',