moodle-block_fale_conosco/js/manage.js

define(['jquery', 'jqueryui' ], function ($, jqui) {
var wwwroot = M.cfg.wwwroot;
 
    function initManage() {
       //Do your java-script magic here
	alert('Working!');
    }
 
    return {
        init: function () {
            initManage();
        }
    };
});