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This commit is contained in:
Oystein Kristoffer Tveit
2020-01-29 12:56:06 +01:00
commit 04efff0d15
51 changed files with 1673 additions and 0 deletions
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30
html/tasks/chapter_5/task11_tables/oppgave.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Oppgave 11</title>
<link rel="stylesheet" href="../../../../resources/css/main.css">
<script async src="./script.js"></script>
</head>
<body>
<h1>Oppgave 11</h1>
<div class=center>
<div class="inline">
Lag <input type="number" id="amount" value="0" min="0" max="999"> tilfeldige tall mellom 0 og <input type="number" id="range" value="0" min="0">
<button id="reload">Reload</button>
</div>
<table id="table">
<thead>
<tr>
<th>Tall</th>
</tr>
</thead>
</table>
</div>
</body>
</html>

34
html/tasks/chapter_5/task11_tables/script.js Normal file
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const table = document.getElementById("table");
const globalAmount = document.getElementById("amount");
const globalRange = document.getElementById("range");
const reloadButton = document.getElementById("reload");
const listHeader = table.innerHTML;
globalAmount.addEventListener("input", updateList, false);
globalRange.addEventListener("input", updateList, false);
reloadButton.addEventListener("click", updateList, false);
function updateList() {
addToList(generateNums(globalAmount.value, globalRange.value), table);
}
function addToList(numArray, table) {
rows = '';
for (i in numArray) {
rows += '<tr><td>' + numArray[i] + '</td></tr>';
}
table.innerHTML = listHeader + rows;
}
function generateNums(amount, range) {
let array = [];
for (i=0; i<amount; i++) {
array[i] = Math.ceil(Math.random()*range);
}
return array;
}
function sumTable(table) {
}

38
html/tasks/chapter_5/task12_encryption/oppgave.html Executable file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Rot n</title>
<link rel="stylesheet" href="../../../../resources/css/main.css">
<script async src="script.js"></script>
</head>
<body>
<h1>Rot(n)</h1>
<h2>Encryption</h2>
<form id="encrypt">
Message<br>
<input type="text" name="Message" id="emess">
Cipher:
<input type="number" name="Cipher" min="0" max="26" id="enum">
<input type="submit" value="Submit">
</form>
<p id="etext"></p>
<h2>Decryption</h2>
<form id="decrypt">
Message<br>
<input type="text" name="Message" id="dmess">
Cipher:
<input type="number" name="Cipher" min="0" max="26" id="dnum">
<input type="submit" value="Submit">
</form>
<p id="dtext"></p>
</body>
</html>

71
html/tasks/chapter_5/task12_encryption/script.js Executable file
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var encForm = document.getElementById("encrypt");
var emess = document.getElementById("emess");
var eciph = document.getElementById("enum");
var etext = document.getElementById("etext");
encForm.onsubmit=function(evt){
evt.preventDefault();
etext.innerHTML = encrypt(emess.value, parseInt(eciph.value));
}
var decForm = document.getElementById("decrypt");
var dmess = document.getElementById("dmess");
var dciph = document.getElementById("dnum");
var dtext = document.getElementById("dtext");
decForm.onsubmit=function(evt){
evt.preventDefault();
dtext.innerHTML = decrypt(dmess.value, parseInt(dciph.value));
}
function mod(x,n){
return ((x%n)+n)%n;
}
function encrypt(mess,number){
messArray=mess.split('');
result=[];
for (i in messArray){
x=messArray[i].charCodeAt(0);
if (x>64 && x<91){
x-=64;
x+=number;
x=mod(x,26);
x+=64;
} else if (x>96 && x<123){
x-=96;
x+=number;
x=mod(x,26);
x+=96;
}
result.push(String.fromCharCode(x));
}
result = result.join("");
return result;
}
function decrypt(mess,number){
messArray=mess.split('');
result=[];
for (i in messArray){
x=messArray[i].charCodeAt(0);
if (x>64 && x<91){
x-=64;
x-=number;
x=mod(x,26);
x+=64;
} else if (x>96 && x<123){
x-=96;
x-=number;
x=mod(x,26);
x+=96;
}
result.push(String.fromCharCode(x));
}
result = result.join("");
return result;
}