mtrand
Implementation of the MT19937 Random Number Generator Algorithm.
Installation
npm install --save mtrand
API
function mtrand(seed)*
Parameters:
-
seed32-bit unsigned integer value to use as the seed.
Return value:
function mtrand(seed, upper_bound)*
Parameters:
-
seed32-bit unsigned integer value to use as the seed. -
upper_boundall results will be less than this number.
Return value:
Examples
node.js:
'use strict';
const mtrand = require('mtrand');
const seed = 0xC0FFEE;
const rng = mtrand(seed);
console.log('Here are some random numbers:\n');
for (let i = 0; i < 10; i++) {
console.log(`* ${rng.next().value}`);
}
browser:
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>mtrand example</title>
</head>
<body>
Here are some random dice rolls: <ul id="results"></ul>
<script src="mtrand.js"></script>
<script>
const seed = 0xC0FFEE;
const rng = mtrand(seed, 6);
const faces = [ '\u2680', '\u2681', '\u2682', '\u2683', '\u2684', '\u2685' ];
for (let i = 0; i < 10; i++) {
const li = document.createElement("LI");
const val = document.createTextNode(faces[rng.next().value]);
li.appendChild(val);
document.getElementById("results").appendChild(li);
}
</script>
</body>
</html>
Testing
npm test
License
See LICENSE.md