Q.

Description:
Write a function, which takes a non-negative integer (seconds) as input and returns the time in a human-readable format (HH:MM:SS)

HH = hours, padded to 2 digits, range: 00 - 99
MM = minutes, padded to 2 digits, range: 00 - 59
SS = seconds, padded to 2 digits, range: 00 - 59
The maximum time never exceeds 359999 (99:59:59)

You can find some examples in the test fixtures.

A)

function humanReadable(seconds) {
  // TODO
  let hour = Math.floor(seconds/3600)
  let min = Math.floor(seconds/60)%60
  let second = seconds%60
  const pad = (number) => number < 10 ? '0' +number : number
  return pad(hour) + ':' + pad(min) + ':' + pad(second)
}