Solution: lb_vigenere

Here is the commented solution for this project.

Create the script

Create a file named lb_vigenere.js.

$ touch lb_vigenere.js

Implement the cypher

The objective of this part is to implement the Vigenere cipher.

1. Declare a function named vigenereCipher().

   // File: lb_vigenere.jsfunction vigenereCipher(message, keyword, encrypt = true) {  //}

2. Declare a variable named table used for encryption and decryption, and initialize it with a string that contains all the letters in the alphabet and all the digits from 0 to 9 .