Async Load Event Demo

AccountForm.js

if (typeof (MEA) == "undefined") { MEA = {} };
if (typeof (MEA.Account) == "undefined") { MEA.Account = {} };
if (typeof (MEA.Account.AccountForm) == "undefined") { MEA.Account.AccountForm = {} };

MEA.Account.AccountForm = {
    onLoad: function (executionContext) {
        var formContext = executionContext.getFormContext();
        return new Promise((resolve, reject) => {
            setTimeout(() => {
                var formItem = formContext.ui.formSelector.items.get(1);
                console.log(formItem);
                formItem.navigate();
                resolve("ok")
            }, 2000)
        });
    }
}