Run results for: query-string vs URLSearchParams

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Browser: Chrome 128

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

query-string

882K/s

URLSearchParams

787K/s

View exact numbers

Test name	Executions per second
✓ query-string	881,529 Ops/sec
URLSearchParams	786,959 Ops/sec

HTML Preparation code:

<script type='module'>
    import qs from 'https://cdn.skypack.dev/query-string';

    window.qs = qs
</script>

Script Preparation code:

window.string = 'hola=mundo&soy=david'

window.parseQuery = (query) => {
  const searchParams = new URLSearchParams(query);
  const result = {};

  for (const [key, value] of searchParams) {
    if (key in result) {
      const current = result[key];
      if (Array.isArray(current)) {
        current.push(value);
      } else {
        result[key] = [current, value];
      }
    } else {
      result[key] = value;
    }
  }

  return result;
};

Tests:

query-string
qs.parse(string)
URLSearchParams
parseQuery(string)