Сдвиг букв

console.log('Let us slide some letters! ➡️')

let n = 'a'.charCodeAt(0)
console.log('a shifted by 1:', String.fromCharCode(n + 1))

let n = 'a'.charCodeAt(0)
console.log('a shifted by 3:', String.fromCharCode(n + 3))

let shift = 3
let letter = 'h'
let n = letter.charCodeAt(0)
console.log(letter, 'becomes', String.fromCharCode(n + shift))

let word = 'cat'
let shift = 1
for (let i = 0; i < word.length; i++) {
  let n = word.charCodeAt(i)
  console.log(String.fromCharCode(n + shift))
}

let word = 'cat'
let shift = 1
let secret = ''
for (let i = 0; i < word.length; i++) {
  secret = secret + String.fromCharCode(word.charCodeAt(i) + shift)
}
console.log('Secret:', secret)

let n = 'd'.charCodeAt(0)
console.log('d shifted back by 3:', String.fromCharCode(n - 3))

console.log('z is tricky! It should wrap to a 🌀')

function shiftLetter(letter, amount) {
  return String.fromCharCode(letter.charCodeAt(0) + amount)
}
console.log(shiftLetter('a', 2))

function shiftLetter(l, a) { return String.fromCharCode(l.charCodeAt(0) + a) }
console.log('Shift 5:', shiftLetter('a', 5))
console.log('Shift 10:', shiftLetter('a', 10))

let word = 'dog'
let shift = 2
let secret = ''
for (let i = 0; i < word.length; i++) {
  secret += String.fromCharCode(word.charCodeAt(i) + shift)
}
console.log(word, 'becomes', secret)

console.log('Shifting letters: LEARNED! 🌟')