Run results for: URLSearchParams vs Custom

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; Redmi Note 7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.104 Mobile Safari/537.36

Browser: Chrome Mobile 96

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
Custom Encode	629834.3 Ops/sec
Native Encode	47654.8 Ops/sec

Script Preparation code:


var querystring = 'foo=bar&baz=qux&quxx=corge&grault=garply&waldo=fred&plugh=xyzzy'

var queryobj = {
  foo: 'bar',
  baz: 'qux',
  quux: 'corge',
  grault: 'garply',
  waldo: 'fred',
  plugh: 'xyzzy'
}

function encode (data) {
  let result = '?'

  for (const key in data) {
    if (data[key] != null) {
      result += key + '=' + data[key] + '&'
    }
  }

  return result.slice(0, -1)
}

function encodeNative (data) {
  return new URLSearchParams(data).toString()
}

Tests:

Custom Encode
encode(queryobj)
Native Encode
encodeNative(queryobj)

Run results for: URLSearchParams vs Custom

Custom Encode

Native Encode