Merge pull request #942 from matthewtff/cache-object-string-value

Cached Object string representation
reduxjs · Oct 23, 2015 · 82b75d6 · 82b75d6
2 parents 9b00b02 + 28c80b8
commit 82b75d6
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/utils/isPlainObject.js b/src/utils/isPlainObject.js
@@ -1,4 +1,5 @@
 var fnToString = (fn) => Function.prototype.toString.call(fn);
+var objStringValue = fnToString(Object);
 
 /**
  * @param {any} obj The object to inspect.
@@ -19,5 +20,5 @@ export default function isPlainObject(obj) {
 
   return typeof constructor === 'function'
     && constructor instanceof constructor
-    && fnToString(constructor) === fnToString(Object);
+    && fnToString(constructor) === objStringValue;
 }