Benchmark: find("input") vs find("[type='checkbox']")

HTML Preparation code:

<form id="form">
  <input type="checkbox"/>
  <input type="checkbox"/>
  <input type="checkbox"/>
  <input type="checkbox"/>
  <input type="checkbox"/>
  <input type="checkbox"/>
  <input type="checkbox"/>
  <input type="checkbox"/>
  <input type="checkbox"/>
  <input type="checkbox"/>
</form>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>

Script Preparation code:

var $form = $("#form");

Tests:

find by input
$form.find("input");
find by attribute value
$form.find("[type='checbox']");

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
find by input
find by attribute value

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net.

**What is being tested?**

The provided JSON represents two individual test cases, each designed to measure the performance difference between using different jQuery selectors in a JavaScript benchmark.

**Options being compared:**

1. `find("input")`
2. `find("[type='checkbox']")`

These options differ in how they select elements from the DOM tree:

* `find("input")`: This selector looks for HTML input elements with no attributes or children. It's a simple, straightforward way to find an element by its tag name.
* `find("[type='checkbox']")`: This selector uses attribute selectors to find elements with a specific "type" attribute set to "checkbox". The square brackets `[]` indicate that the value inside them is part of the selector.

**Pros and Cons:**

1. **Simple, direct approach**: Using `find("input")` is straightforward and easy to read, as it doesn't require understanding advanced selectors.
	* Pros: Easy to understand, fast execution time ( likely optimal for simple use cases).
	* Cons: May not be suitable for more complex scenarios where attribute-based selection is necessary.
2. **Flexible, powerful approach**: Using `find("[type='checkbox']")` provides a more flexible and efficient way to select elements based on attributes.
	* Pros: Suitable for selecting elements with specific attributes, can improve performance in certain cases (e.g., when the DOM tree is very large).
	* Cons: May be more difficult to understand and read, especially for developers without prior experience with attribute selectors.

**Library usage:**

Both test cases use jQuery, a popular JavaScript library for DOM manipulation and event handling. In this context, jQuery provides the `find()` method, which is used in both options.

**Special JS feature or syntax:**

There are no special JavaScript features or syntax used in these test cases beyond what's standard in modern JavaScript (ES6+). The use of attribute selectors (`[type='checkbox']`) is specific to jQuery and CSS selectors.

**Other alternatives:**

If you're looking for alternative approaches, consider the following:

* **Document.querySelector()**: This method provides a similar functionality to `find()` but without jQuery. It's part of the W3C DOM API.
* **CSS Selectors**: Without using a library like jQuery, you can use CSS selectors in your JavaScript code to select elements. However, this approach requires more manual effort and might not be as efficient.

In summary, the MeasureThat.net benchmark provides two test cases that compare the performance of using `find("input")` versus `find("[type='checkbox']")`. The first option is a straightforward, simple way to find an element by its tag name, while the second option uses attribute selectors for more complex scenarios.

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.131 Safari/537.36 OPR/78.0.4093.147

Browser/OS: Opera 78 on Windows 7

View result in a separate tab

Test name	Executions per second
find by input	239056.3 Ops/sec
find by attribute value	145172.7 Ops/sec

Related benchmarks:

find("input") vs find("[type='checkbox']") (version: 0)

Compare using jQuery find method with different selectors.

Comparing performance of: find by input vs find by attribute value

Created: 3 years ago by: Guest

Jump to the latest result

find by input

find by attribute value

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):