querySelector vs getElementsByClassName (version: 0)
Comparing performance of: querySelector vs getElementsByClassName
Created: 3 years ago by: Registered User
Jump to the latest result
HTML Preparation code:
1
1
<div class="test"></div>AخA
1
<div class="test"></div>Tests:
-
querySelector
document.querySelector(".test")document.querySelector(".test") -
getElementsByClassName
document.getElementsByClassName(".test")document.getElementsByClassName(".test")
Rendered benchmark preparation results:
Suite status: <idle, ready to run>
Experimental features:
Memory measurements supported only in Chrome.
For precise memory measurements Chrome must be launched with
More information: Monitoring JavaScript Memory
For precise memory measurements Chrome must be launched with
--enable-precise-memory-info flag.
More information: Monitoring JavaScript Memory
-
Test case name Result querySelector getElementsByClassName Fastest: N/A
Slowest: N/A
Latest run results:
Run details: (Test run date:
4 hours ago)
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.14 Safari/537.36 Edg/83.0.478.10
Chrome 83 on Windows
View result in a separate tab
| Test name | Executions per second |
|---|---|
| querySelector | 2441588.0 Ops/sec |
| getElementsByClassName | 2877113.0 Ops/sec |
querySelector vs getElementsByClassName (version: 0)
Comparing performance of: querySelector vs getElementsByClassName
Created: 3 years ago by: Registered User
Jump to the latest result
HTML Preparation code:
1
1
<div class="test"></div>1
1
<div class="test"></div>Tests:
-
querySelector
document.querySelector(".test")document.querySelector(".test") -
getElementsByClassName
document.getElementsByClassName(".test")document.getElementsByClassName(".test")
Rendered benchmark preparation results:
Suite status: <idle, ready to run>
-
Test case name Result querySelector getElementsByClassName Fastest: N/A
Slowest: N/A
Latest run results:
Run details: (Test run date:
4 hours ago)
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.14 Safari/537.36 Edg/83.0.478.10
Chrome 83 on Windows
View result in a separate tab
| Test name | Executions per second |
|---|---|
| querySelector | 2441588.0 Ops/sec |
| getElementsByClassName | 2877113.0 Ops/sec |