Run results for: query-string vs URLSearchParams

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Browser: Chrome 97

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
query-string	196573.5 Ops/sec
URLSearchParams	80819.2 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)