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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 |
---|---|
3615 | /** |
3616 | * Filters the available devices to allow previewing in the Customizer. |
3617 | * |
3618 | * @since 4.5.0 |
3619 | * |
3620 | * @see WP_Customize_Manager::get_previewable_devices() |
3621 | * |
3622 | * @param array $devices List of devices with labels and default setting. |
3623 | */ |
3624 | $devices = apply_filters( 'customize_previewable_devices', $devices ); |
3625 |
|
3626 | return $devices; |
3627 | } |
3628 |
|
3629 | /** |
3630 | * Register some default controls. |
3631 | * |
3632 | * @since 3.4.0 |
3633 | */ |