Using Wordpress 3.4.2, the wp_enqueue_script documentation seems to indicate that jQuery UI libraries can be loaded simply by referencing their handles. I have the following code with no prior wp_register_script():


The enqueue for 'jquery' works fine, but the enqueue for 'jquery-ui-core' isn't working.

I realize that I can register and load script explicitly using Google CDN (or make explicit references to library elements in Wordpress install) ... but again documentation makes me think I shouldn't have to do this w/ Wordpress current version.

Anyone know why this doesn't work?

  • 2
    The handle jquery-ui-core does not reference the whole core incl. all core plugins, but just the base. Other than that, the above should work and the syntax is correct. Commented Nov 25, 2012 at 15:06
  • 3
    What isn't working? Does wp_enqueue_script( 'jquery-ui-core' ) not cause any scripts to be enqueued? Or are you missing certain UI libraries? Or something else? What do you expect to happen, but isn't happening? Or what is happening unexpectedly or differently from what you expected to happen? Commented Nov 25, 2012 at 15:11
  • I'm expecting to get jquery-ui-core loaded via a <script src= ...> reference to the .js that Wordpress would add in page as a result of the wp_enqueue_script() call. This is happening for jquery (which I'm including first) and it's happening for other libraries, just not the jquery ui libraries when I call w/ the handle (btw if I make explicit reference to Google CDN then everything works fine).
    – jalexander
    Commented Nov 25, 2012 at 16:34
  • What all scripts actually load? Can we see a live link to the rendered output? Commented Nov 25, 2012 at 18:07

2 Answers 2


I guess you have to really read the Codex about wp_enqueue_script() again and then dig into jQuery a little bit more. jQuery UI is a dependency of jQuery (which means it depends on having jQuery loaded). So you need to load jQuery first, before loading jQuery UI (or jQuery UI Mobile).

Edit as per @ChipBennet and @MannyFleurmond comments below:

  1. There's no need to add array( 'jquery' ) as $dependency argument for jquery-ui-core, as Chip shows us in this core reference
  2. As Manny stated, you need to add every effect/plugin by itself, like for e.g. 'jquery-effects-fold', 'jquery-ui-resizable' or 'jquery-effects-explode'.
  3. The example is right, but missing the (possibly) needed plugins

    wp_enqueue_script( 'jquery' );
    wp_enqueue_script( 'jquery-ui-core' );
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    Actually, doesn't core register jquery as a dependency of jquery-ui-core? So, calling wp_enqueue_script( 'jquery-ui-core' ) will automatically enqueue jquery? Commented Nov 25, 2012 at 16:18
  • @ChipBennett As it's your idea, you now have to prove that fact :D
    – kaiser
    Commented Nov 25, 2012 at 16:21
  • Refer to \wp-includes\script-loader.php, line 125. Commented Nov 25, 2012 at 18:06
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    Don't forget that you'll also need to load any individual jQuery UI plugins that you need, as shown here: codex.wordpress.org/Function_Reference/… Commented Nov 25, 2012 at 18:38
  • Ok. Edited the answer to reflect both of your comments. @Chip owe you a beer I guess ;)
    – kaiser
    Commented Nov 25, 2012 at 20:15

Loading jquery-ui just loads the core of the UI plugins. If you want to load individual plugins, you'll have to load the separately:

wp_enqueue_script('jquery-ui-sortable'); //load sortable
wp_enqueue_script('jquery-ui-tabs'); //load tabs

A complete list of what you can load is here

  • Indeed as documentation states: jquery-ui-core (Att.: This is not the whole core incl. all core plugins. Just the base core.). Commented Nov 25, 2012 at 21:43

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