console.log('2020-01-23'.match(/(\d{4})-(\d{2})-(\d{2})/))

const t = '2020-01-23'.match(/(?<year>\d{4})-(?<month>\d{2})-(?<day>\d{2})/)

console.log(t.groups.year)

console.log(t.groups.month)

console.log(t.groups.day)