rot-13
v1.0.0
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rot13
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rot-13
rot-13
is a simple letter substitution cipher that replaces a letter with the letter 13 letters after it in the alphabet. https://en.wikipedia.org/wiki/ROT13
Details
Converts alpha characters to there rotated-by-13 equivalent letter. Keeps cases. Ignores other characters.
Input: ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
Output: NOPQRSTUVWXYZABCDEFGHIJKLMnopqrstuvwxyzabcdefghijklm
Example
Why did the chicken cross the road?
Gb trg gb gur bgure fvqr!
Transforming the entire text via ROT13 form, the answer to the joke is revealed:
Jul qvq gur puvpxra pebff gur ebnq?
To get to the other side!
Usage
var rot13 = require('./index.js');
console.log(rot13('abc')); // 'nop'
Tests
Just run ava.
ava