General
The
jquery library, and virtually all of its plugins are constrained within the
jquery namespace. As a general rule, "global" objects are stored inside the
jquery namespace as well, so you shouldn't get a clash between
jquery and any other library (like
prototype, MooTools, or YUI).
That said, there is one caveat: By default,
jquery uses "$" as a shortcut for "
jquery"
[edit]
Overriding the $-function
However, you can override that default by calling
jquery.noConflict() at any point after
jquery and the other library have both loaded. For example:
<html>
<head>
<script src="
prototype.js"></script>
<script src="
jquery.js"></script>
<script>
jquery.noConflict();
// Use
jquery via
jquery(...)
jquery(document).ready(function(){
jquery("div").hide();
});
// Use
prototype with $(...), etc.
$('someid').style.display = 'none';
</script>
</head>
<body></body>
</html>
This will revert $ back to its original library. You'll still be able to use "
jquery" in the rest of your application.
Additionally, there's another option. If you want to make sure that
jquery won't conflict with another library - but you want the benefit of a short name, you could do something like this:
<html>
<head>
<script src="
prototype.js"></script>
<script src="
jquery.js"></script>
<script>
var $j =
jquery.noConflict();
// Use
jquery via $j(...)
$j(document).ready(function(){
$j("div").hide();
});
// Use
prototype with $(...), etc.
$('someid').style.display = 'none';
</script>
</head>
<body></body>
</html>
You can define your own alternate names (e.g. jq, $J, awesomeQuery - anything you want).
Finally, if you don't want to define another alternative to the
jquery name (you really like to use $ and don't care about using another library's $ method), then there's still another solution for you. This is most frequently used in the case where you still want the benefits of really short
jquery code, but don't want to cause conflicts with other libraries.
<html>
<head>
<script src="
prototype.js"></script>
<script src="
jquery.js"></script>
<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').style.display = 'none';
</script>
</head>
<body></body>
</html>
This is probably the ideal solution for most of your code, considering that there'll be less code that you'll have to change, in order to achieve complete compatibility.
[edit]
Referencing Magic - Shortcuts for
jqueryIf you don't like typing the full "
jquery" all the time, there are some alternative shortcuts:
* Reassign
jquery to another shortcut
o var $j =
jquery;
o (This might be the best approach if you wish to use different libraries)
* Use the following technique, which allows you to use $ inside of a block of code without permanently overwriting $:
o (function($) { // some code that uses $ })(
jquery)
o Note: If you use this technique, you will not be able to use
prototype methods inside this capsuled function that expect $ to be
prototype's $, so you're making a choice to use only
jquery in that block.
* Use the argument to the DOM ready event:
o
jquery(function($) { // some code that uses $ });
o Note: Again, inside that block you can't use
prototype methods
