MeasureThat.net

Run results for: querySelector vs getElementsByClassName with multiple elements

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36
Chrome 107
Mac OS X 10.15.7
Desktop
2 years ago
Test name Executions per second
querySelector 2310175.5 Ops/sec
getElementsByClassName 2796748.8 Ops/sec
HTML Preparation code:
​x
 
1
<div class="test"></div>
2
<div class="test2"></div>
3
<div class="test3"></div>
4
<div class="test4"></div>
5
<div class="test5"></div>
6
<div class="test6"></div>
7
<div class="test7"></div>
8
​
Tests:

  • querySelector

     
    document.querySelector(".test")

  • getElementsByClassName

     
    document.getElementsByClassName(".test")