Message Mixer super-encoder UNDEFINED

Web Development Back-End
1

Hi there I’m struggling with the super-encoder session of Message Mixer because it keeps saying undefined when i run the program. I’ve looked through the forums for the same problem but nothing worked for me, I can’t see where I’m missing something, can anyone help me? this is my code:

const encryptors = require('./encryptors.js');

const caesarCipher = encryptors.caesarCipher;

const symbolCipher = encryptors.symbolCipher;

const reverseCipher = encryptors.reverseCipher;

const encodeMessage = (str) => {
  return reverseCipher(symbolCipher(caesarCipher(str,6)));
  
}

const decodeMessage = (str) => {
  return caesarCipher(symbolCipher(reverseCipher(str)), -6);
  
}

also here’s the link to the exercise: https://www.codecademy.com/paths/back-end-engineer-career-path/tracks/becp-javascript-syntax-part-iii/modules/becp-learn-javascript-syntax-node-modules/projects/message-mixer-node

2

What’s the exact error mesage, and what’s the contents of encryptors.js?

3

When I run the program the function returns ‘Undefined’

The contents:

module.exports.caesarCipher = function(str,amount = 0) {  if (amount < 0) {
    return caesarCipher(str, amount + 26);
  }
  let output = '';
  for (let i = 0; i < str.length; i++) {
    let char = str[i];
    if (char.match(/[a-z]/i)) {
      let code = str.charCodeAt(i);
      if (code >= 65 && code <= 90) {
        char = String.fromCharCode(((code - 65 + amount) % 26) + 65);
      } else if (code >= 97 && code <= 122) {
        char = String.fromCharCode(((code - 97 + amount) % 26) + 97);
      }
    }
    output += char;
  }
  return output;
};
module.exports.symbolCipher = function(str){
  const symbols = {
    'i': '!',
    '!': 'i',
    'l': '1',
    '1': 'l',
    's': '$',
    '$': 's',
    'o': '0',
    '0': 'o',
    'a': '@',
    '@': 'a',
    'e': '3',
    '3': 'e',
    'b': '6',
    '6': 'b'
  }

  let output = '';
  for (let i = 0; i < str.length; i++) {
    let char = str.toLowerCase()[i];

    if (symbols[char]) {
      output += symbols[char]
    } else {
      output += char;
    }
  }
  return output;
}

module.exports.reverseCipher = function(sentence) {
  let words = sentence.split(' ');
  for (let i = 0; i < words.length; i++) {
    words[i] = words[i].split('').reverse().join('');
  }
   return words.join(' ');
};
4

Nevermind, just found my problem, thank you!!! :star_struck:

5

What was the problem? I’m having the same “Undefined” issue and I have no idea what to look for.

1 Like
6

me too, same prob here and nowhere to look for an answer…