How to check checkboxes by values using javascript selenium.

README.md

Both getAttribute and isSelected are asynchronous methods, so my solution has become such complicated. Does anyone know a simpler solution?

checkboxes.js

import webdriver from 'selenium-webdriver';
const Promise = webdriver.promise;//Promise.map not supported in native Promise.

const values = ['1', '3']
driver.findElements(By.css('.checkbox[name=foobar]'))
  // make objects like {elem: element, value: '1'}
  .then(elems => Promise.map(
    elems, 
    elem => elem.getAttribute('value').then(value => ({elem: elem, value: value}))
  ))
  // add checked status to adove objects. {elem: element, value: '1', isSelected: false}
  .then(composits => Promise.map(
    composits,
    composit => composit.elem.isSelected().then(isSelected => ({elem: composit.elem, value: composit.value, isSelected: isSelected}))
  ))
  // filter to unchecked and specified values
  .then(composits => composits.filter(composit => !composit.isSelected && action.values.indexOf(composit.value) >= 0))
  // click
  .then(composits => Promise.map(
    composits,
    composit => composit.elem.click()
  ))