FTAndy

const elements = Array.from(document.querySelectorAll('.gameslistitems_Hours_26nl3'))

const hours = s.map(d => d.innerText).filter(c => c.include('hours')).map(o => parseInt(/(?!\n)(.+) hours/.exec(o)[1].replace(',', '')) ).reduce((a, b) => a + b ,0)

console.log(hours)

FTAndy

let results = []

dataArray.reduce((prePromise, data) => {
  return prePromise.then(() => {
    return dosomethingWithData(data)
    .then((result) => {
      results.push(result)
    })
  })
}, Promise.resolve())