Benchmark: querySelector vs tag

HTML Preparation code:

<div>
    <main>
        <nav>
            <b>
                <small>
                    <p id="A" class="idx">12345</p>
                </small>
            </b>
        </nav>
    </main>
</div>

Script Preparation code:

var X = 0;

Tests:

1
document.querySelector("div>main>nav>b>small>p").textContent = ++X;
2
document.querySelector(".idx").textContent = ++X;
3
A.textContent = ++X;
4
document.getElementsByTagName("p")[0].textContent = ++X;
5
document.getElementsByClassName("idx")[0].textContent = ++X;
6
document.getElementById("A").textContent = ++X;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
1
2
3
4
5
6

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.0 Safari/605.1.15

Browser/OS: Safari 17 on Mac OS X 10.15.7

View result in a separate tab

826K/s

822K/s

807K/s

804K/s

803K/s

729K/s

View exact numbers

Test name	Executions per second
✓ 6	825,719 Ops/sec
3	822,472 Ops/sec
4	807,252 Ops/sec
1	803,515 Ops/sec
5	802,723 Ops/sec
2	728,974 Ops/sec

querySelector vs tag (version: 0) Benchmark.js

Comparing performance of: `1 vs 2 vs 3 vs 4 vs 5 vs 6`

Created: 2 years ago by: Guest

Go to the latest result

1

2

3

4

5

6

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

querySelector vs tag (version: 0) Benchmark.js

Comparing performance of: 1 vs 2 vs 3 vs 4 vs 5 vs 6

Created: 2 years ago by: Guest

Go to the latest result

1

2

3

4

5

6

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `1 vs 2 vs 3 vs 4 vs 5 vs 6`