switchWindow
Switch focus to a particular tab / window.
Usage
browser.switchWindow(urlOrTitleToMatch)
Parameters
| Name | Type | Details | 
|---|---|---|
| urlOrTitleToMatch | String,RegExp | String or regular expression that matches the title or url of the page | 
Example
it('should switch to another window', () => {
    // open url
    browser.url('https://google.com')
    // create new window
    browser.newWindow('https://webdriver.io')
    // switch back via url match
    browser.switchWindow('google.com')
    // switch back via title match
    browser.switchWindow('Next-gen WebDriver test framework')
});