no array allocation during externals

import-js · Dec 2, 2015 · 5f8ff3e · 5f8ff3e
1 parent d3ae40b
commit 5f8ff3e
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/resolvers/webpack/index.js b/resolvers/webpack/index.js
@@ -94,7 +94,11 @@ function findExternal(source, externals) {
   }
 
   // else, vanilla object
-  return Object.keys(externals).some(function (e) { return source === e })
+  for (var key in externals) {
+    if (!externals.hasOwnProperty(key)) continue
+    if (source === key) return true
+  }
+  return false
 }
 
 /**