mentoring.js

function validIp(ip) {
  const ipArray = ip.split(".")
  console.log(ipArray.length)
  return ipArray.length === 4 && !ipArray.some(address => 0 > Number(address) || Number(address) > 255)
}

console.log(validIp('1.2.3.4'))
console.log(validIp('123.45.67.89'))
console.log(validIp('1.2.3.4.5'))
console.log(validIp('1.2.3'))
console.log(validIp('123.456.78.90'))

function likesInfo(names) {
  if (names.length === 1) {
    return `${names[0]} likes this`
  } else if (names.length === 2) {
    return `${names[0]} and ${names[1]} like this"`
  }else if (names.length === 3) {
    return `${names[0]}, ${names[1]} and ${names[2]} like this`
  }else if (names.length === 4){
    return `${names[0]}, ${names[1]} and ${names.length - 2} others like this`
  }
}