+ if (completed && !prevented) fn();
+
+ return this;
+ }
+
+
+
+ function addPreventedFunc(fn) {
+ // Only accept functions
+ if (typeof fn !== 'function') return false;
+
+ prevented_fn.push(fn);
+
+ // If we have already completed the emits, call this now
+ if (completed && prevented) fn();
+
+ return this;