WebdriverIO is a very well known End to End JavaScript testing framework for automation testing. It is based in Node.js and can further help you automate user activities on a browser with the help of WebdriverIO browser commands. WebDriverIO browser commands are used to directly perform certain actions on the browser. There are a few examples: Opening browser, Finding element, Navigating forward, back, Refreshing the page also Close the browser.
In Selenium, a driver object is created to interact with the browser. However, in WebDriverIO you can set up a WebDriverIO test runner to directly use a globally initialized ‘driver' or ‘browser’ object. In this WebDriverIO tutorial, I will cover the ‘browser’ object and how to use them. While running the script, the browser session gets automatically initialized and closed. You don't have to create objects separately in WebDriverIO.