WordPress at a glance
function is not described

wp_ajax_update_widget() WP 3.9.0

Ajax handler for saving a widget.

  • Global. WP_Customize_Manager. $wp_customize

No Hooks.

Return

Nothing (null).

Usage

wp_ajax_update_widget();

Code of wp ajax update widget: wp-admin/includes/ajax-actions.php VER 5.1.1

<?php
function wp_ajax_update_widget() {
	global $wp_customize;
	$wp_customize->widgets->wp_ajax_update_widget();
}