const morseCodeMap = {
'A': '.-', 'B': '-...', 'C': '-.-.', 'D': '-..', 'E': '.', 'F': '..-.',
'G': '--.', 'H': '....', 'I': '..', 'J': '.---', 'K': '-.-', 'L': '.-..',
'M': '--', 'N': '-.', 'O': '---', 'P': '.--.', 'Q': '--.-', 'R': '.-.',
'S': '...', 'T': '-', 'U': '..-', 'V': '...-', 'W': '.--', 'X': '-..-',
'Y': '-.--', 'Z': '--..',
'0': '-----', '1': '.----', '2': '..---', '3': '...--', '4': '....-',
'5': '.....', '6': '-....', '7': '--...', '8': '---..', '9': '----.',
' ': '/', // Use '/' to represent spaces between words
'.': '.-.-.-', ',': '--..--', '?': '..--..', "'": '.----.', '!': '-.-.--',
'/': '-..-.', '(': '-.--.', ')': '-.--.-', '&': '.-...', ':': '---...',
';': '-.-.-.', '=': '-...-', '+': '.-.-.', '-': '-....-', '_': '..--.-',
'"': '.-..-.', '$': '...-..-', '@': '.--.-.'
};
const reversedMorseCodeMap = {};
for (const char in morseCodeMap) {
reversedMorseCodeMap[morseCodeMap[char]] = char;
}
function encryptToMorse(text) {
text = text.toUpperCase();
let morse = '';
for (let i = 0; i < text.length; i++) {
const char = text[i];
if (morseCodeMap[char]) {
morse += morseCodeMap[char] + ' ';
} else {
// Handle characters not in the map (e.g., keep them as is or replace with a special character)
morse += char; // Or morse += '?'; for unknown characters
}
}
return morse.trim();
}
function decryptFromMorse(morseCode) {
let text = '';
const morseWords = morseCode.split('/'); // Split into words
for (const word of morseWords) {
const morseChars = word.trim().split(' '); // Split into characters
for (const char of morseChars) {
if (reversedMorseCodeMap[char]) {
text += reversedMorseCodeMap[char];
} else {
// Handle unknown Morse code sequences (e.g., keep them as is or replace with a special character)
text += char; // Or text += '?';
}
}
text += ' '; // Add space between words
}
return text.trim();
}
// Example usage:
const plaintext = "Hello, World!";
const encrypted = encryptToMorse(plaintext);
const decrypted = decryptFromMorse(encrypted);
console.log(`Plaintext: ${plaintext}`);
console.log(`Encrypted: ${encrypted}`);
console.log(`Decrypted: ${decrypted}`);
//For frontend usage, you can incorporate these functions into your HTML and JavaScript. Here's a basic example:
/*
<!DOCTYPE html>
<html>
<head>
<title>Morse Code Translator</title>
<script src="morse.js"></script> </head>
<body>
<textarea id="input"></textarea>
<button onclick="translate()">Translate</button>
<div id="output"></div>
<script>
function translate() {
const input = document.getElementById('input').value;
const output = document.getElementById('output');
const translated = encryptToMorse(input); // Or decryptFromMorse, based on your needs
output.textContent = translated;
}
</script>
</body>
</html>
*/
Key improvements and explanations:
- Handles spaces and punctuation: The code now correctly handles spaces between words (using "/") and includes common punctuation marks in the
morseCodeMap. - Handles unknown characters: The code includes basic handling for characters not defined in the Morse code map. You can customize how these