selenium-webdriver-promise.js

const {Builder, By, Key, until} = require('selenium-webdriver');

let driverPromise = new Builder()
    .forBrowser('firefox')
    .build();

driverPromise.then(driver => driver.get('http://www.google.com/ncr'))
  .then(() => driver.findElement(By.name('q')))
  .then(element => element.sendKeys('webdriver', Key.RETURN))
  .then(() => driver.wait(until.titleIs('webdriver - Google Search'), 1000))
  .then(() => driver.quit())