chunrapeepat/cardat.js

## cardat.js
function cardAt(n) {
  const a = ['C', 'D', 'H', 'S'],
        b = [2, 3, 4, 5, 6, 7, 8, 9, 0, 'J', 'Q', 'K', 'A']
  const c = Math.floor(n / b.length),
        d = n - (b.length * c)
  return b[d] +  a[c]
}
	function cardAt(n) {
	const a = ['C', 'D', 'H', 'S'],
	b = [2, 3, 4, 5, 6, 7, 8, 9, 0, 'J', 'Q', 'K', 'A']
	const c = Math.floor(n / b.length),
	d = n - (b.length * c)
	return b[d] + a[c]
	}