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Update index.html
Browse files- index.html +76 -18
index.html
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@@ -1,19 +1,77 @@
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<!
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<html>
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</html>
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<!DOCTYPE html>
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<html lang="ja">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>文字列のエンコード/デコード</title>
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<script>
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function getXORValue() {
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const xorInput = document.getElementById("xorValue");
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return parseInt(xorInput.value) || 0; // 数値が無効な場合は0
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}
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function encodeString(str) {
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const xorValue = getXORValue();
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let encoded = str
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.split("")
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.map((char, ind) => {
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if (ind % 2 !== 0) {
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return String.fromCharCode(char.charCodeAt() ^ xorValue);
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}
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return char;
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})
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.join("");
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return encodeURIComponent(encoded);
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}
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function decodeString(encodedStr) {
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const xorValue = getXORValue();
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let decodedStr = decodeURIComponent(encodedStr);
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return decodedStr
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.split("")
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.map((char, ind) => {
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if (ind % 2 !== 0) {
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return String.fromCharCode(char.charCodeAt() ^ xorValue);
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}
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return char;
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})
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.join("");
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}
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function updateEncode() {
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const inputStr = document.getElementById("inputStr").value;
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const encodedStr = encodeString(inputStr);
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document.getElementById("encodedStr").value = encodedStr;
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}
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function updateDecode() {
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const encodedStr = document.getElementById("encodedStr").value;
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const decodedStr = decodeString(encodedStr);
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document.getElementById("inputStr").value = decodedStr;
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}
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window.onload = function() {
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document.getElementById("inputStr").addEventListener("input", updateEncode);
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document.getElementById("encodedStr").addEventListener("input", updateDecode);
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document.getElementById("xorValue").addEventListener("input", () => {
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updateEncode();
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updateDecode();
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});
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}
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</script>
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</head>
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<body>
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<h1>文字列のエンコード/デコード</h1>
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<div>
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<h3>エンコード / デコード</h3>
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<label for="xorValue">XOR値 (数値):</label>
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<input type="number" id="xorValue" value="3" />
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<br><br>
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<label for="inputStr">元の文字列:</label><br>
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<textarea id="inputStr" rows="4" cols="50"></textarea>
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<br><br>
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<label for="encodedStr">エンコードされた文字列:</label><br>
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<textarea id="encodedStr" rows="4" cols="50"></textarea>
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</div>
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</body>
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</html>
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