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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 |
---|---|
1950 | /** |
1951 | * Filters the available devices to allow previewing in the Customizer. |
1952 | * |
1953 | * @since 4.5.0 |
1954 | * |
1955 | * @see WP_Customize_Manager::get_previewable_devices() |
1956 | * |
1957 | * @param array $devices List of devices with labels and default setting. |
1958 | */ |
1959 | $devices = apply_filters( 'customize_previewable_devices', $devices ); |
1960 |
|
1961 | return $devices; |
1962 | } |
1963 |
|
1964 | /** |
1965 | * Register some default controls. |
1966 | * |
1967 | * @since 3.4.0 |
1968 | */ |