Question

i have two functions, the parent function is __triggerAction, than child function is __triggerNormal which the parent $current is being updated, how to parse the new

$current = $index

from __triggerNormal back to __triggerAction?

  _triggerAction = function(el, click, fx) {
    var $current, $link;
    $link = el.find('.tab-menu').find('li');
    $current = 0;
    if (click) {
      log('Trigger by click');
      return $link.click(function() {
        return __triggerNormal(this, el, $current, fx);
      });
    } else {
      log('Trigger by hover');
      return $link.hover(function() {
        return __triggerNormal(this, el, $current, fx);
      });
    }
  };

 __triggerNormal = function(thisEl, el, $current, fx) {
    var $index;
    if (!($(thisEl).hasClass("active"))) {
      log('current slide ' + $current);
      log($index = $(thisEl).index());
      __addRemoveClass(thisEl);
      __fxAction(el, fx, $current, $index);
      return $current = $index;
    }
};

Answer 1

Instead of

return __triggerNormal(this, el, $current, fx);

do

$current = __triggerNormal(this, el, $current, fx);
return $current;

$current is not shared between the functions, so inside __triggerNormal,

return $current = $index;

just updates the local variable. You can just write

return $index;

---

Btw, the return value of event handlers is only used for determining whether to prevent the default action and stop the propagation or not. It does not seems to be necessary in your case to return $current at all.