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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 |
---|---|
5015 | /** |
5016 | * Filters the available devices to allow previewing in the Customizer. |
5017 | * |
5018 | * @since 4.5.0 |
5019 | * |
5020 | * @see WP_Customize_Manager::get_previewable_devices() |
5021 | * |
5022 | * @param array $devices List of devices with labels and default setting. |
5023 | */ |
5024 | $devices = apply_filters( 'customize_previewable_devices', $devices ); |
5025 |
|
5026 | return $devices; |
5027 | } |
5028 |
|
5029 | /** |
5030 | * Registers some default controls. |
5031 | * |
5032 | * @since 3.4.0 |
5033 | */ |