Run results for: jQuery each vs pure JS

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser: Chrome 119

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

pure JS

1.4M/s

jQuery DIV

706K/s

jQuery

698K/s

pure JS DIV

176/s

View exact numbers

Test name	Executions per second
✓ pure JS	1,376,255 Ops/sec
jQuery DIV	705,550 Ops/sec
jQuery	698,268 Ops/sec
pure JS DIV	176 Ops/sec

HTML Preparation code:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>

Script Preparation code:

//Add 100,000 elements
var frag = document.createDocumentFragment();
for (var i=0; i<10; i++){
  var outSection = document.createElement('section');
  outSection.id="secid_"+i;
  for (var j=0; j<100; j++){
    var midDiv = document.createElement('div');
    midDiv.id="mdivid_"+j;
    for (var k=0; k<100; k++){
      var inDiv = document.createElement('div');
      inDiv.id="divid_"+k;
      midDiv.appendChild(inDiv);
    }
    outSection.appendChild(midDiv)
  }
  frag.appendChild(outSection);
}
document.body.appendChild(frag);

Tests:

jQuery
var a = 0; $('section').each(function () { a++; });
pure JS
function forEachElement(selector, fn) { var elements = document.getElementsByTagName(selector); for (var i = 0; i < elements.length; i++) fn(elements[i]); } var a = 0; forEachElement('section', function (el){ a++; });
jQuery DIV
var a = 0; $('section').each(function () { a++; });
pure JS DIV
function forEachElement(selector, fn) { var elements = document.getElementsByTagName(selector); for (var i = 0; i < elements.length; i++) fn(elements[i]); } var a = 0; forEachElement('div', function (el){ a++; });

Run results for: jQuery each vs pure JS

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jQuery

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jQuery DIV

pure JS DIV