Picks a country for you to study. (Actually, three.)

pick-a-country.js

fetch('https://en.wikipedia.org/wiki/List_of_countries_and_dependencies_and_their_capitals_in_native_languages')
  .then(res => res.text())
  .then(resText => (new DOMParser()).parseFromString(resText, 'text/html'))
  .then(doc => (
    Array.from(doc.getElementsByClassName('wikitable'))
      .map(tbl => tbl.querySelectorAll('tr'))
      .reduce((f, tf) => f.concat(Array.from(tf)), [])
      .map(r => r.children[0])
      .map(t => t.innerText)
  ))
  .then(countries => {
    const picked = []
    for (i = 0; i < 3; i++) {
      picked.push(countries[Math.floor(Math.random() * countries.length)])
    }
    return picked
  })
  .then(picked => {
    console.log(picked)
  })