Run results for: matthex - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.2 Safari/605.1.15

Browser: Safari 14

Operating system: Mac OS X 10.15.6

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
uid	842986.3 Ops/sec
uid2	1255932.0 Ops/sec
hex	1996601.0 Ops/sec

Script Preparation code:

var IDX=36, HEX='';
while (IDX--) HEX += IDX.toString(36);

function uid(len) {
  var str='', num = len || 6;
  while (num--) str += HEX[Math.random() * 36 | 0];
  return str;
}

function uid2(len = 6) {
  const  hex = '0123456789abcdefghijklmnopqrstuvwxyz';
  let id = '';
  while(len--) id += hex[Math.random() * 36 | 0];
  return id;
}

function hex() {
  return Math.random().toString(36).substring(6);
}

Tests:

uid
uid()
uid2
uid2()
hex
hex()