Merge pull request #421 from cartersgenes/patch-1

Updated function with fastest implementation

count.js

@@ -5,17 +5,6 @@ module.exports = function(str, substr) {
   substr = makeString(substr);
 
   if (str.length === 0 || substr.length === 0) return 0;
-
-  var count = 0,
-    pos = 0,
-    length = substr.length;
-
-  while (true) {
-    pos = str.indexOf(substr, pos);
-    if (pos === -1) break;
-    count++;
-    pos += length;
-  }
-
-  return count;
+
+  return str.split(substr).length - 1;
 };