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gucheen/random-bytes.js

Last active August 25, 2017 02:08
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Generate random string/characters in JavaScript
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random-bytes.js
// dec2hex :: Integer -> String
function dec2hex (dec) {
return ('0' + dec.toString(16)).substr(-2);
}
// generateId :: Integer -> String
function generateId (len = 40) {
const arr = new Uint8Array(len / 2);
window.crypto.getRandomValues(arr);
return Array.from(arr, dec2hex).join('');
}
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