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2016 Update

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This commit is contained in:
Tina Müller 2016-12-05 22:15:40 +01:00
parent 948b86eafa
commit dcf5d15da3
7965 changed files with 139854 additions and 31002 deletions
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11
Task/Caesar-cipher/JavaScript/caesar-cipher-1.js Normal file
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function caesar (text, shift) {
return text.toUpperCase().replace(/[^A-Z]/g,'').replace(/[A-Z]/g, function(a) {
return String.fromCharCode(65+(a.charCodeAt(0)-65+shift)%26);
});
}
// Tests
var text = 'veni, vidi, vici';
for (var i = 0; i<26; i++) {
console.log(i+': '+caesar(text,i));
}

5
Task/Caesar-cipher/JavaScript/caesar-cipher-2.js Normal file
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var caesar = (text, shift) => text
.toUpperCase()
.replace(/[^A-Z]/g, '')
.replace(/[A-Z]/g, a =>
String.fromCharCode(65 + (a.charCodeAt(0) - 65 + shift) % 26));

43
Task/Caesar-cipher/JavaScript/caesar-cipher-3.js Normal file
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((key, strPlain) => {
// Int -> String -> String
let caesar = (k, s) => s.split('')
.map(c => tr(
inRange(['a', 'z'], c) ? 'a' :
inRange(['A', 'Z'], c) ? 'A' : 0,
k, c
))
.join('');
// Int -> String -> String
let unCaesar = (k, s) => caesar(26 - (k % 26), s);
// Char -> Int -> Char -> Char
let tr = (base, offset, char) =>
base ? (
String.fromCharCode(
ord(base) + (
ord(char) - ord(base) + offset
) % 26
)
) : char;
// [a, a] -> a -> b
let inRange = ([min, max], v) => !(v < min || v > max);
// Char -> Int
let ord = c => c.charCodeAt(0);
// range :: Int -> Int -> [Int]
let range = (m, n) =>
Array.from({
length: Math.floor(n - m) + 1
}, (_, i) => m + i);
// TEST
let strCipher = caesar(key, strPlain),
strDecode = unCaesar(key, strCipher);
return [strCipher, ' -> ', strDecode];
})(114, 'Curio, Cesare venne, e vide e vinse ? ');

24
Task/Caesar-cipher/JavaScript/caesar-cipher.js
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<html><head><title>Caesar</title></head>
<body><pre id='x'></pre>
<script type="application/javascript">
function disp(x) {
var e = document.createTextNode(x + '\n');
document.getElementById('x').appendChild(e);
}
function trans(msg, rot) {
return msg.replace(/([a-z])/ig,
function($1) {
var c = $1.charCodeAt(0);
return String.fromCharCode(
c >= 97 ? (c + rot + 26 - 97) % 26 + 97
: (c + rot + 26 - 65) % 26 + 65);
});
}
var msg = "The quick brown f0x Jumped over the lazy Dog 123";
var enc = trans(msg, 3);
var dec = trans(enc, -3);
disp("Original:" + msg + "\nEncoded: " + enc + "\nDecoded: " + dec);
</script></body></html>