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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 |
---|---|
4801 | /** |
4802 | * Filters the available devices to allow previewing in the Customizer. |
4803 | * |
4804 | * @since 4.5.0 |
4805 | * |
4806 | * @see WP_Customize_Manager::get_previewable_devices() |
4807 | * |
4808 | * @param array $devices List of devices with labels and default setting. |
4809 | */ |
4810 | $devices = apply_filters( 'customize_previewable_devices', $devices ); |
4811 |
|
4812 | return $devices; |
4813 | } |
4814 |
|
4815 | /** |
4816 | * Register some default controls. |
4817 | * |
4818 | * @since 3.4.0 |
4819 | */ |