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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 |
---|---|
1815 | /** |
1816 | * Filter the available devices to allow previewing in the Customizer. |
1817 | * |
1818 | * @since 4.5.0 |
1819 | * |
1820 | * @see WP_Customize_Manager::get_previewable_devices() |
1821 | * |
1822 | * @param array $devices List of devices with labels and default setting. |
1823 | */ |
1824 | $devices = apply_filters( 'customize_previewable_devices', $devices ); |
1825 |
|
1826 | return $devices; |
1827 | } |
1828 |
|
1829 | /** |
1830 | * Register some default controls. |
1831 | * |
1832 | * @since 3.4.0 |
1833 | */ |