function formatDate()

in src/LangCard.js [104:112]


function formatDate(dateString) {
  if (!dateString) {
    return '??-??-????'
  }
  const date = new Date(dateString)
  return `${date.getFullYear()}-${fNum(date.getMonth() + 1)}-${fNum(
    date.getDate(),
  )}`
}