Benchmark: JQuery: attr vs prop for getting id v3

HTML Preparation code:

<div id="element1"></div>
<div id="element2"></div>
<div id="element3"></div>
<div id="element4"></div>
<div id="element5"></div>
<div id="element6"></div>
<div id="elementelement7"></div>
<div id="element8"></div>
<div id="element9"></div>
<div id="element10"></div>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.js'></script>

Script Preparation code:

var $element = $("#element1");

Tests:

attr
let id = $element.attr("id");
prop
let id = $element.prop("id");
direct fetch
let id = $element[0].id;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
attr
prop
direct fetch

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36

Browser/OS: Chrome 129 on Linux

View result in a separate tab

Test name	Executions per second
attr	3547755.8 Ops/sec
prop	6503770.5 Ops/sec
direct fetch	29326024.0 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

LLMs can make mistakes. Check important info.

**Overview of the Benchmark**

The provided JSON represents a JavaScript microbenchmark test case on MeasureThat.net. The benchmark compares three different approaches to retrieve an element's ID in a jQuery object.

**Approaches Compared**

1. **attr**: Uses the `attr()` method to get the value of a specific attribute (in this case, "id").
2. **prop**: Uses the `prop()` method to get the value of a specific property (in this case, "id").
3. **direct fetch**: Directly accesses the element's ID using `[0].id`, which is an unconventional and less jQuery-like approach.

**Pros and Cons of Each Approach**

1. **attr**:
	* Pros: Easy to read and understand, as it's a standard jQuery method.
	* Cons: May be slower due to attribute lookup, which can involve a DOM traversal.
2. **prop**:
	* Pros: Fast, as it directly accesses the property without attribute lookup.
	* Cons: Less intuitive than `attr()`, especially for developers not familiar with jQuery's internal workings.
3. **direct fetch**: (Note: Not recommended in production code)
	* Pros: Extremely fast, as it bypasses jQuery's overhead and directly accesses the element's ID.
	* Cons: Unconventional and less readable; requires careful consideration of the trade-offs.

**Library and Syntax Considerations**

The benchmark uses jQuery library, which is a popular JavaScript library for DOM manipulation. The `attr()` and `prop()` methods are part of jQuery's API.

There are no special JS features or syntax used in this benchmark.

**Other Alternatives**

For comparing attribute access in a more lightweight way, you could use the `Element.getAttribute()` method (similar to `attr()`), which is supported by most modern browsers. However, keep in mind that it may not be as efficient as using `prop()` or direct fetch.

If you prefer not to use jQuery, you can also compare the execution times of vanilla JavaScript methods like `element.id` or `element.dataset.id`.

**Benchmark Preparation Code Explanation**

The provided script preparation code creates a jQuery object `$element` and assigns it to an element with the ID "element1". The HTML preparation code creates multiple elements with IDs ranging from 1 to 10, ensuring that there are enough elements for the benchmark.

The benchmark definition JSON provides the three test cases, each defining a different approach to retrieve the element's ID.

Related benchmarks:

JQuery: attr vs prop for getting id v3 (version: 0)

Compare solutions for getting id from JQuery object.

Comparing performance of: attr vs prop vs direct fetch

Created: 4 years ago by: Registered User

Jump to the latest result

attr

prop

direct fetch

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):