wp.customize.controlConstructor['kirki-date'] = wp.customize.Control.extend({ // When we're finished loading continue processing ready: function() { 'use strict'; var control = this, selector = control.selector + ' input.datepicker'; // Init the datepicker jQuery( selector ).datepicker(); // Save the changes this.container.on( 'change keyup paste', 'input.datepicker', function() { control.setting.set( jQuery( this ).val() ); }); } });