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Update Atbash.js

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This commit is contained in:
Bharat Arya
2020-10-03 15:23:24 +05:30
committed by GitHub
parent 4a8443dda8
commit 5023cdd7cc
1 changed files with 12 additions and 17 deletions
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29
Ciphers/Atbash.js
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@ -5,30 +5,25 @@ so that the first letter becomes the last letter,
the second letter becomes the second to last letter, and so on.
*/
/**
* Decrypt a Atbash cipher
* @param {String} str - string to be decrypted/encrypt
* @return {String} decrypted/encrypted string
*/
const Atbash = (message) => {
let decodedString = ''
for (let i = 0; i < message.length; i++) {
if (/[^a-zA-Z]/.test(message[i])) {
decodedString += message[i]
} else if (message[i] === message[i].toUpperCase()) {
decodedString += String.fromCharCode(90 + 65 - message.charCodeAt(i))
} else {
decodedString += String.fromCharCode(122 + 97 - message.charCodeAt(i))
}
}
return decodedString
function Atbash(message) {
let decodedString = ''
for(let i = 0; i < message.length; i++) {
if(/[^a-zA-Z]/.test(message[i])) {
decodedString += message[i]
} else if(message[i] === message[i].toUpperCase()) {
decodedString += String.fromCharCode(90 + 65 - message.charCodeAt(i))
} else {
decodedString += String.fromCharCode(122 + 97 - message.charCodeAt(i))
}
}
return decodedString
}
// Atbash Example
const encryptedString = 'HELLO WORLD'
const decryptedString = Atbash(encryptedString)
console.log(decryptedString) // SVOOL DLIOW