<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
var test = document.querySelectorAll('[data-attribute]');
var test = document.querySelectorAll('.test');
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
data attribute | |
class name |
Test name | Executions per second |
---|---|
data attribute | 562619.8 Ops/sec |
class name | 959703.6 Ops/sec |
Measuring JavaScript performance is an essential task for web developers, and MeasureThat.net provides a great platform to do so.
The provided JSON represents two benchmark tests: querySelectorAll data attribute vs class name 1
and two individual test cases: data attribute
and class name
. Let's break down what each test case measures:
Benchmark Test: querySelectorAll data attribute vs class name 1
This test compares the performance of querying elements using a data attribute ([data-attribute]
) versus a CSS class name (.
) in the document.querySelectorAll()
method.
In this benchmark, we have two identical HTML structures with multiple elements containing either a data-attribute
or a class
attribute. The goal is to measure which approach (data attribute or CSS class name) performs better in terms of execution speed.
Individual Test Cases:
Data Attribute
:var test = document.querySelectorAll('[data-attribute]');
Class Name
:var test = document.querySelectorAll('.test');
Options Compared:
In this benchmark, we're comparing two approaches:
[data-attribute]
): This approach uses the data attribute syntax to select elements..test
): This approach uses the CSS class name syntax to select elements.Pros and Cons:
[data-attribute]
):.test
):Library/ Syntax Features:
There are no libraries or special JavaScript features used in this benchmark. The focus is on the document.querySelectorAll()
method, which is a built-in API.
However, it's worth noting that MeasureThat.net allows you to experiment with different libraries and frameworks, such as React, Angular, or Vue.js. If you're interested in exploring these options, you can create new benchmarks using those specific libraries and syntax features.
Special JS Features/Syntax:
None of the benchmark tests use any special JavaScript features or syntax beyond the document.querySelectorAll()
method.
Alternatives:
If you'd like to explore other performance testing frameworks or tools, some alternatives include:
Keep in mind that each benchmarking tool has its strengths and weaknesses. It's essential to choose the right tool for your specific use case and experiment with different approaches to find the best fit for your needs.