_.after(0, callback) now fires callback immediately

test/functions.js

@@ -188,6 +188,7 @@ $(document).ready(function() {
 
     equals(testAfter(5, 5), 1, "after(N) should fire after being called N times");
     equals(testAfter(5, 4), 0, "after(N) should not fire unless called N times");
+    equals(testAfter(0, 0), 1, "after(0) should fire immediately");
   });
 
 });

underscore.js

@@ -595,9 +595,9 @@
 
   // Returns a function that will only be executed after being called N times.
   _.after = function(times, func) {
-    return function() {
+    return times ? function() {
       if (--times < 1) { return func.apply(this, arguments); }
-    };
+    } : func();
   };
 
   // Object Functions