jQuery conflicts with Scriptaculous

WHY is it that i cannot use Scr开发者_StackOverflowiptaculous and jQuery in the same page without calling: jQuery.noConflict() ?

Because they both use the $ variable in the global namespace.

You can use $ in the following scenario:

<script>
 jQuery.noConflict();

 // Put all your code in your document ready area
 jQuery(document).ready(function($){
   // Do jQuery stuff using $
   $("div").hide();
 });

 // Use Prototype with $(...), etc.
 $('someid').hide();
</script>

I think it's the best way of using libraries which had the same $ function

WHY is it that i cannot use Scriptaculous and jQuery in the same page without calling: jQuery.noConflict() ?

If you were able to use different javascript libraries on same page, the very existence of jQuery.noConflict() was not needed. It is because of special symbol $ which holds special meaning in those different javascript libraries.