1 files changed, 6 insertions, 4 deletions

diff --git a/lib/fastdom.js b/lib/fastdom.js
index 036a2dc..a5f98ad 100644
--- a/lib/fastdom.js
+++ b/lib/fastdom.js
@@ -197,14 +197,16 @@
    * by the number of frames
    * specified.
    *
-   * @param  {Function} fn
    * @param  {Number}   frames
+   * @param  {Function} fn
    * @api public
    */
-  FastDom.prototype.defer = function(fn, frames) {
+  FastDom.prototype.defer = function(frames, fn, ctx) {
+    if (frames < 0) return;
+
     (function wrapped() {
       if (frames-- === 0) {
-        try { fn(); } catch (e) {
+        try { fn.call(ctx); } catch (e) {
           if (this.onError) this.onError(e);
         }
       } else {
@@ -266,4 +268,4 @@
     window['fastdom'] = fastdom;
   }
 
-})(window.fastdom);
\ No newline at end of file
+})(window.fastdom);