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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 15 | * @package BackPress |
| 16 | * @uses WP_Dependencies |
| 17 | * @since r16 |
| 18 | */ |
| 19 | class WP_Scripts extends WP_Dependencies { |
| 20 | var $base_url; // Full URL with trailing slash |
| 21 | var $default_version; |
| 22 | |
| 23 | function __construct() { |
| 24 | do_action_ref_array( 'wp_default_scripts', array(&$this) ); |
| 25 | } |
| 26 | |
| 27 | /** |
| 28 | * Prints scripts |
| 29 | * |
| 30 | * Prints the scripts passed to it or the print queue. Also prints all necessary dependencies. |
| 31 | * |
| 32 | * @param mixed handles (optional) Scripts to be printed. (void) prints queue, (string) prints that script, (array of strings) prints those scripts. |
| 33 | * @return array Scripts that have been printed |