Run results for: sortAlphaNumUsingRegex2() vs localeCompare('en', {numeric: true})

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Browser: Chrome 124

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
sortAlphaNum()	261944.7 Ops/sec
Intl.Collator.compare()	5822163.0 Ops/sec

Script Preparation code:

var a = "FOO BAR";
var b = "foo bar";

var options = {
  numeric: true
};

var collator = new Intl.Collator('en', options);

var reA = /[^a-zA-Z]/g;
var reN = /[^0-9]/g;

function sortAlphaNum(a, b) {
  var regExp = /([0-9]+)|([a-zA-Z]+)/g;
  var aParts = a.match(regExp);
  var bParts = b.match(regExp);
  var collator = new Intl.Collator('en', { numeric: true });

  while (aParts.length > 0 && bParts.length > 0) {
    var aPart = aParts.shift();
    var bPart = bParts.shift();
    if (isNaN(aPart) && isNaN(bPart)) {
      if (aPart !== bPart) {
        return collator.compare(aPart, bPart);
      }
    } else {
      aPart = parseInt(aPart) || 0;
      bPart = parseInt(bPart) || 0;
      if (aPart !== bPart) {
        return aPart - bPart;
      }
    }
  }
  return aParts.length - bParts.length;
}

Tests:

sortAlphaNum()
sortAlphaNum(a,b) === 0
Intl.Collator.compare()
collator.compare(a, b) === 0

Run results for: sortAlphaNumUsingRegex2() vs localeCompare('en', {numeric: true})

sortAlphaNum()

Intl.Collator.compare()