public/subjects/tell-it-cypher/README.md

tell-it-cypher

Instructions

FINALLY, you got the names. But you could forget it... loose it... How could you write it without puting the surprise in danger?!

Create a tell-it-cypher.mjs script that:

• Takes a file as first argument
• Takes one of these keywords as second argument:
  • encode: convert your file from utf8 to base64, then save the result in a cypher.txt file.
  • decode: convert your file from base64 to utf8, then save the result in a clear.txt file.
• Could take a string as third argument and use it as the new file name. Extension must be precised.

Notions

• Node buffer: .from()
• Node buffer: .toString()