getTitle = function getTitle() {
    return this.unify(this.title(), {
        extractValue: true
    });
}
Get the title of current opened website. This command only works for browser environments or on mobile
devices with webview enabled (hybrid tests).

<example>
    :getTitle.js
    it('should get the title of the document', function () {
        browser.url('http://webdriver.io');

        var title = browser.getTitle()
        console.log(title);
        // outputs the following:
        // "WebdriverIO - WebDriver bindings for Node.js"
    });
</example>

@alias browser.getTitle
@return {String} current page title
@uses protocol/title
@type property