Benchmark: JQuery: compare find select from div

HTML Preparation code:

<div id="parent" class="c-1">
  <select></select>
  <select></select>
  <select></select>
  <select></select>
  <select></select>
  <select></select>
  <select></select>
  <select></select>
  <select></select>
  <select></select>
</div>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.js'></script>

Tests:

by id and select
$('#parent select')
by tag, class and select
$('div.c-1 select')
by class and select
$('.c-1 select')
id -> find by select
$("#parent").find("select");
class -> find by select
$(".c-1").find("select");
tag and class -> find by select
$("div.c-1").find("select");

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
by id and select
by tag, class and select
by class and select
id -> find by select
class -> find by select
tag and class -> find by select

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.89 Safari/537.36

Browser/OS: Chrome 84 on Windows

View result in a separate tab

Test name	Executions per second
by id and select	189403.9 Ops/sec
by tag, class and select	178034.6 Ops/sec
by class and select	122498.9 Ops/sec
id -> find by select	133873.2 Ops/sec
class -> find by select	154649.6 Ops/sec
tag and class -> find by select	102761.7 Ops/sec

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

LLMs can make mistakes. Check important info.

I'll break down the benchmark definition, options compared, pros and cons, and other considerations.

**Benchmark Definition**

The test cases are designed to measure the performance of jQuery's DOM selection methods. Each test case has a unique "Benchmark Definition" string that specifies how to select elements using different combinations of:

1. ID: `#` (e.g., `$('#parent select')`)
2. Tag name and class: `div.c-1` (e.g., `$('div.c-1 select')`)
3. Class only: `.c-1` (e.g., `$('.c-1 select')`)
4. Find method with ID: `$(` followed by the tag name, then `.find()` followed by the selector `select`
5. Find method with class: `$(` followed by the class, then `.find()` followed by the selector `select`

**Options Compared**

The benchmark compares different approaches to selecting elements in a DOM:

1. **By ID**: Using the `#` symbol to select an element by its ID.
2. **By Tag Name and Class**: Selecting elements based on their tag name and class using the `div.c-1` syntax.
3. **By Class Only**: Using the `.c-1` syntax to select elements based on their class only (without a specific tag name).
4. **Find Method with ID**: Using the `.` symbol followed by the tag name, then the `.find()` method followed by the selector `select`.
5. **Find Method with Class**: Using the `.c-1` syntax and the `.find()` method followed by the selector `select`.

**Pros and Cons**

Here's a brief summary of the pros and cons for each approach:

1. **By ID**:
	* Pros: Fast, efficient, and accurate.
	* Cons: May not work if multiple elements have the same ID (e.g., IDs are not unique).
2. **By Tag Name and Class**:
	* Pros: Fast, efficient, and accurate for elements with a specific tag name and class combination.
	* Cons: May be slower than using IDs or classes alone.
3. **By Class Only**:
	* Pros: Easy to use, fast, and efficient.
	* Cons: May not work if multiple elements have the same class (e.g., classes are not unique).
4. **Find Method with ID**:
	* Pros: Fast, efficient, and accurate for elements with a specific tag name.
	* Cons: May be slower than using IDs directly.
5. **Find Method with Class**:
	* Pros: Easy to use, fast, and efficient.
	* Cons: May be slower than using classes alone.

**Other Considerations**

1. **Performance**: The performance of each approach can vary depending on the specific use case, browser, and DOM structure. jQuery's `find()` method can be slower for large datasets due to its recursive nature.
2. **Code Readability**: The choice of approach should balance performance with code readability and maintainability. Using consistent naming conventions and avoiding unnecessary complexity can improve overall developer productivity.
3. **Browser Support**: Some browsers may have issues or limitations with certain jQuery methods or selectors.

**Alternatives**

If you need alternative approaches, consider:

1. Using CSS selectors (e.g., `div.c-1 select`) for more efficient selection.
2. Implementing a custom selector engine or optimizer to improve performance.
3. Using other JavaScript libraries or frameworks that offer optimized selection methods (e.g., React's Virtual DOM).

In summary, the benchmark definition compares different jQuery selection methods, highlighting their pros and cons. Understanding these differences can help developers choose the most efficient approach for their specific use case, balancing performance with code readability and maintainability.

Related benchmarks:

JQuery: compare find select from div (version: 0)

find best solution for getting checkbox

Comparing performance of: by id and select vs by tag, class and select vs by class and select vs id -> find by select vs class -> find by select vs tag and class -> find by select

Created: 4 years ago by: Guest

Jump to the latest result

by id and select

by tag, class and select

by class and select

id -> find by select

class -> find by select

tag and class -> find by select

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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