All files / webdriverio/src/commands/browser $.js

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/**
 * The `$` command is a short way to call the [`findElement`](/docs/api/webdriver.html#findelement) command in order
 * to fetch a single element on the page. It returns an object that with an extended prototype to call
 * action commands without passing in a selector. However if you still pass in a selector it will look
 * for that element first and call the action on that element.
 *
 * Using the wdio testrunner this command is a global variable else it will be located on the browser object instead.
 *
 * You can chain `$` or `$$` together in order to walk down the DOM tree. For more information on how
 * to select specific elements, see [`Selectors`](/docs/selectors.html).
 *
 * <example>
    :index.html
    <ul id="menu">
        <li><a href="/">Home</a></li>
        <li><a href="/">Developer Guide</a></li>
        <li><a href="/">API</a></li>
        <li><a href="/">Contribute</a></li>
    </ul>
    :$.js
    it('should get text a menu link', () => {
        const text = $('#menu');
        console.log(text.$$('li')[2].$('a').getText()); // outputs: "API"
    });
 
    it('should get text a menu link - JS Function', () => {
        const text = $(function() { // Arrow function is not allowed here.
            // this is Window https://developer.mozilla.org/en-US/docs/Web/API/Window
            // TypeScript users may do something like this
            // return (this as Window).document.querySelector('#menu')
            return this.document.querySelector('#menu'); // Element
        });
        console.log(text.$$('li')[2].$('a').getText()); // outputs: "API"
    });
 * </example>
 *
 * @alias $
 * @param {String|Function} selector  selector or JS Function to fetch a certain element
 * @return {Element}
 * @type utility
 *
 */
import { findElement } from '../../utils'
import { getElement } from '../../utils/getElementObject'
 
export default async function $ (selector) {
    const res = await findElement.call(this, selector)
    return getElement.call(this, selector, res)
}