<div id="d0" class="data" data-test="lorem">test dataset</h3>
document.querySelector('.data').d0;
document.querySelector('.data').getAttribute('test');
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
id | |
getAttribute |
Test name | Executions per second |
---|---|
id | 560350.5 Ops/sec |
getAttribute | 293806.0 Ops/sec |
I'll break down the provided benchmarking scenario for you.
What is being tested?
The benchmark measures the performance difference between using an id
and using the getAttribute()
method to retrieve an element's attribute value in JavaScript.
Options compared:
There are two options being compared:
id
: This involves directly referencing an element by its id
attribute.getAttribute()
: This involves retrieving an element's attribute value using the getAttribute()
method.Pros and cons of each approach:
id
:getAttribute()
:getAttribute()
method.Library usage:
In this benchmark, no libraries are explicitly mentioned. However, the use of document.querySelector()
implies that the browser's native DOM API is being used.
Special JS feature or syntax:
There are no special JavaScript features or syntaxes mentioned in this benchmark. The code uses standard JavaScript syntax and DOM APIs.
Alternative approaches:
Other alternatives to using id
and getAttribute()
could include:
className
: Some browsers support retrieving an element's class name using the className
property.Keep in mind that these alternatives might not be supported by all browsers or versions, so it's essential to consider the target audience and browser requirements when choosing an approach.