Run results for: While loop parentElement vs closest (vanilla javascript)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:129.0) Gecko/20100101 Firefox/129.0

Browser: Firefox 129

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

while

1690.9M/s

closest

16.7M/s

View exact numbers

Test name	Executions per second
✓ while	1,690,884,096 Ops/sec
closest	16,716,422 Ops/sec

HTML Preparation code:

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<style type="text/css">
.hidden {
display: none;
}
</style>
<div class="visible">
	<div class="hidden">
		<div class="hidden">
			<div class="hidden hidden-last"></div>
		</div>
	</div>
</div>
      

<script>

  Benchmark.prototype.setup = function() {    
 	 let element = document.querySelector('.hidden-last'); 
  };


      
</script>

Tests:

while
while (element.classList.contains(".hidden")) { element = element.parentElement; }
closest
element = element.closest('.visible')

Run results for: While loop parentElement vs closest (vanilla javascript)

Compare closest() to parentElement in a while loop

while

closest