Run results for: javiselectoptions

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36

Browser: Chrome 73

Operating system: Windows

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
childrenfirst	2430.7 Ops/sec
directfirst	5333.2 Ops/sec
queryfirst	5833.5 Ops/sec
findfirst	8447.3 Ops/sec

HTML Preparation code:

<div>
  <input type="text" value=""/>
  <select id="sampleselect">
  </select>
</div>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>

Script Preparation code:

//emulate a country dropdown
for(i=0; i<200; i++){
  var selectElement = $('#sampleselect'),
      selectHtml = selectElement.html();
  selectElement.html(selectHtml + "<option value='" + i + "'>" + i.toString() + "</option>");
}

Tests:

childrenfirst
$('#sampleselect').children('option').first()
directfirst
$('#sampleselect > option').first()
queryfirst
$('#sampleselect > option:first')
findfirst
$('#sampleselect').find('option').first()

Run results for: javiselectoptions

selectoptions

childrenfirst

directfirst

queryfirst

findfirst