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hydrogen-web/prototypes/base256.html

30 lines
739 B
HTML

<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<script type="text/javascript">
function encodeNumber(n) {
const a = (n & 0xFFFF);
const b = (n & 0xFFFF0000) >> 16;
const c = (n & 0xFFFF00000000) >> 32;
const d = (n & 0xFFFF000000000000) >> 48;
return String.fromCharCode(a, b, c, d);
}
function printN(n) {
//document.write(`<p>fn(${n}) = ${encodeNumber(n)}</p>`);
console.log(n, encodeNumber(n));
}
printN(0);
printN(9);
printN(1000);
printN(Number.MAX_SAFE_INTEGER);
</script>
</body>
</html>