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https://www.codecademy.com/courses/introduction-to-javascript/projects/message-mixer-node
Hi, everyone… I have this problem here, and I don´t understand what is the message error, I need help please…
When I use encode, all looks fine, but when I use decode I have this error…
/home/ccuser/workspace/modules-message-mixer/encryptors.js:4
return caesarCipher(str, amount + 26);
^
ReferenceError: caesarCipher is not defined
at module.exports.caesarCipher (/home/ccuser/workspace/modules-message-mixer/encryptors.js:4:12)
at decodeMessage (/home/ccuser/workspace/modules-message-mixer/super-encoder.js:12:10)
at ReadStream.handleInput (/home/ccuser/workspace/modules-message-mixer/super-encoder.js:25:14)
at emitOne (events.js:96:13)
at ReadStream.emit (events.js:191:7)
at readableAddChunk (_stream_readable.js:178:18)
at ReadStream.Readable.push (_stream_readable.js:136:10)
at TTY.onread (net.js:561:20)
this the super-encoder file
// Import the encryptors functions here.
const {caesarCipher, symbolCipher, reverseCipher} = require("./encryptors.js");
const encodeMessage = (str) => {
// Use the encryptor functions here.
return reverseCipher(symbolCipher(caesarCipher(str,6)));
}
const decodeMessage = (str) => {
// Use the encryptor functions here.
return caesarCipher(symbolCipher(reverseCipher(str)),-6);
}
// User input / output.
const handleInput = (userInput) => {
const str = userInput.toString().trim();
let output;
if (process.argv[2] === 'encode') {
output = encodeMessage(str);
}
if (process.argv[2] === 'decode') {
output = decodeMessage(str);
}
process.stdout.write(output + '\n');
process.exit();
}
// Run the program.
process.stdout.write('Enter the message you would like to encrypt...\n> ');
process.stdin.on('data', handleInput);
this is the encryptors file
// Declare and export the functions here.
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(' ');
};
