webdriverio_standalone.js

var webdriverio = require("webdriverio");

var options = {
  desiredCapabilities: {
    browserName: "chrome"
  }
};

var client = webdriverio.remote(options);

function init() {
  return client.init().url("https://news.ycombinator.com/");
}

async function doStuff() {
  console.log('doStuff');
  const selectorEx = client.selectorExecute("//div", function(inputs) {
    return "divs on page " + inputs.length;
  });
  const res = await selectorEx;
  console.log(">>", res);
}

client = init();
doStuff();