Caesar Cipher JS

The Mr Juli Caesar Cipher in JavaScript

Usage

jcc([string input], [how many rotations], [encrypt or decrypt])

The output will also be string.

Rotations

Minimum rotation is 1, maximum of 25.

Encrypt/Decrypt

Encrypt: 0

Decrypt: 1

The "Encrypt" means shift forward (increases the index reference). The "Decrypt" means shift backward (reduces the index reference).

Usage Example

//jcc([string input], [how many rotations], [encrypt or decrypt])

var output = jcc("AbC", 1, 0);
// the ROT1 encryption [output] will be: "BcD"

var output = jcc("THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG", 23, 0);
// the ROT23 encryption [output] will be: "QEB NRFZH YOLTK CLU GRJMP LSBO QEB IXWV ALD"

var output = jcc("QEB NRFZH YOLTK CLU GRJMP LSBO QEB IXWV ALD", 23, 1);
// the ROT23 decryption [output] will be: "THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG"

With User Interface