adedoyin89

function firstLetter(name) {
  if (typeof(name) !== "string" || name.length < 3) return "Incorrect Input"
  const removedLetter = name.slice(0, -1)
  const result = name[0].toUpperCase() + removedLetter.slice(1)
  return result
}

console.log('firstLetter', firstLetter('Adedoyin'))