Selenium WebDriver wait till element is displayed

Question

I have searched on Google and the SO site and I get answers for JAVA but do not seem to get answers for node.js

I have a web app that takes time to load. I would like

Answer 1

I stumbled upon an answer to my question

So to wait for an element to appear we have to:

driver.wait(function () {
    return driver.isElementPresent(webdriver.By.name("username"));
}, timeout);