Wort buchstabieren

app.js

let alphabet = {
    "A": "Anton",
    "B": "Berta",
    "C": "Cäsar",
    "D": "Dora",
    "E": "Emil",
    "F": "Friedrich",
    "G": "Gustav",
    "H": "Heinrich",
    "I": "Ida",
    "J": "Julius",
    "K": "Konrad",
    "L": "Ludwig",
    "M": "Martha",
    "N": "Nordpol",
    "O": "Otto",
    "P": "Paula",
    "Q": "Quelle",
    "R": "Richard",
    "S": "Siegfried",
    "T": "Theodor",
    "U": "Ulrich",
    "V": "Viktor",
    "W": "Wilhelm",
    "X": "Xaver",
    "Y": "Ypsilon",
    "Z": "Zürich",
    "0": "Null",
    "1": "Eins",
    "2": "Zwei",
    "3": "Drei",
    "4": "Vier",
    "5": "Fünf",
    "6": "Sechs",
    "7": "Sieben",
    "8": "Acht",
    "9": "Neun"
}
let text = window.prompt("Text eingeben")
let spelling = []
for (let i = 0; i < text.length; i++) {
    let c = text.charAt(i)
    let word = alphabet[c.toUpperCase()] || c
    let size = ""
    if (c >= 'a' && c <= 'z') size = "kleines "
    if (c >= 'A' && c <= 'Z') size = "großes "
    spelling.push(`${size}${word}`)
}
let result = spelling.join(", ")
function writeToClipboard() {
    navigator.clipboard.writeText(result)
    alert("Ergebnis ist in der Zwischenablage")
    window.removeEventListener("focus", writeToClipboard)
}
window.addEventListener("focus", writeToClipboard)