WordPress at a glance
function is not described

WP_Customize_Manager::prepare_setting_validity_for_js() public WP 4.6.0

Prepares setting validity for exporting to the client (JS).

Converts WP_Error instance into array suitable for passing into the wp.customize.Notification JS model.

{} It's a method of the class: WP_Customize_Manager{}

No Hooks.

Return

true|Array. If $validity was a WP_Error, the error codes will be array-mapped to their respective message and data to pass into the wp.customize.Notification JS model.

Usage

$WP_Customize_Manager = new WP_Customize_Manager();
$WP_Customize_Manager->prepare_setting_validity_for_js( $validity );
$validity(true|WP_Error) (required)
Setting validity.

Changelog

Since 4.6.0 Introduced.

Code of WP_Customize_Manager::prepare_setting_validity_for_js() WP 5.7.2

<?php
public function prepare_setting_validity_for_js( $validity ) {
	if ( is_wp_error( $validity ) ) {
		$notification = array();
		foreach ( $validity->errors as $error_code => $error_messages ) {
			$notification[ $error_code ] = array(
				'message' => implode( ' ', $error_messages ),
				'data'    => $validity->get_error_data( $error_code ),
			);
		}
		return $notification;
	} else {
		return true;
	}
}