comptage_rapide.js

  let langStats = {}

  data.forEach(e => {
    langStats[e.tweet_lang] = (langStats[e.tweet_lang] || 0) + 1
  })

  console.log(Object.entries(langStats).sort(([langA, countA], [langB, countB]) => countA < countB ? 1 : -1)
    .slice(0, 10).map(([lang, count]) => `${lang} ${Math.floor((count / data.length) * 100)}%`))

/*
Outputs:
[ 'en 29%',
  'th 27%',
  'ja 24%',
  'ar 6%',
  'ko 2%',
  'es 2%',
  'in 1%',
  'und 1%',
  'tr 1%',
  'fr 0%' ]
*/