Benchmark: JQuery version speed test 2

HTML Preparation code:

<script src='https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js'></script>
<script>
  var $jq1124 = $.noConflict(true);
</script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
<script>
  var $jq224 = $.noConflict(true);
</script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script>
  var $jq341 = $.noConflict(true);
</script>
<div>
  <ul id="menu">
    <li class="menu-item">1</li>
    <li class="menu-item">2</li>
    <li class="menu-item">3</li>
    <li class="menu-item">4</li>  
  </ul>
</div>

Script Preparation code:

function tests($) {
    $(".menu-item").eq(2).closest("ul").css({
      "background-color": "red"
    }).parent().css({
      "border": "1px solid blue"
    }).append($("<p></p>").text("Text.").css({
      "background-color": "green"
    })).end().end().remove();
  console.log('tests' + $);
}

Tests:

$jq1124
tests($jq1124);
$jq224
tests($jq224);
$jq341
tests($jq341);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
$jq1124
$jq224
$jq341

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

Let's break down the benchmark and explain what's being tested.

**Overview**

The benchmark tests the speed of different jQuery versions (1.12.4, 2.2.4, and 3.4.1) in a JavaScript microbenchmarking framework called MeasureThat.net.

**Benchmark Definition JSON**

The Benchmark Definition JSON represents a single test case with three variations:

* `tests($jq1124)`: Tests the speed of jQuery version 1.12.4.
* `tests($jq224)`: Tests the speed of jQuery version 2.2.4.
* `tests($jq341)`: Tests the speed of jQuery version 3.4.1.

**Options being compared**

The benchmark compares the execution speed of each jQuery version, which is a measure of how fast the code runs on different machines and browsers.

**Pros and Cons of different approaches**

* **jQuery version selection**: Using a specific version of jQuery can be beneficial for maintaining consistency and predictability in the benchmark results. However, it may not accurately represent real-world usage scenarios.
* **No conflicts with other libraries**: By using `$noConflict(true)` to rename the jQuery object, the test cases avoid potential conflicts with other libraries that may use the same object name. This ensures a fair comparison of the different jQuery versions.

**Libraries and their purposes**

* `$.noConflict()`: A jQuery method that renames the global jQuery object to `$jqX`, where X is the version number (e.g., `$jq1124` in this benchmark). This helps avoid conflicts with other libraries that may use the same object name.
* `MeasureThat.net`: The JavaScript microbenchmarking framework used by MeasureThat.net, which provides a standardized way to measure and compare the performance of different JavaScript code snippets.

**Special JS features or syntax**

None mentioned in the provided Benchmark Definition JSON. However, it's worth noting that some modern browsers may support features like async/await, Promises, or Web Workers, which could potentially affect the benchmark results.

**Other alternatives**

* **Benchmarking frameworks**: MeasureThat.net is one of many JavaScript benchmarking frameworks available, such as JSPerf, Browserbench, or Benchmark.js.
* **Library versions**: Using different versions of jQuery can be beneficial for testing specific features or compatibility issues. However, it may not provide a comprehensive picture of the library's performance.

**Benchmark preparation code**

The Script Preparation Code defines a test function `tests()` that takes a jQuery object `$` as an argument. The function performs a series of operations on the DOM, including:

1. Selecting the second element in the `.menu-item` list and finding its closest parent (`ul`).
2. Setting the background color to red.
3. Setting the border to blue.
4. Appending a new paragraph element with green background color.
5. Removing the appended element.

The Html Preparation Code includes multiple scripts that load different versions of jQuery, each with `$noConflict(true)` called to rename the global object name. The HTML also defines a basic DOM structure with an `ul` list and four `.menu-item` elements.

I hope this explanation helps! Let me know if you have any further questions or need clarification on specific points.

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.79 Safari/537.36

Browser/OS: Chrome 79 on Mac OS X 10.13.6

View result in a separate tab

Test name	Executions per second
$jq1124	7786.5 Ops/sec
$jq224	9305.9 Ops/sec
$jq341	9368.7 Ops/sec

Related benchmarks:

JQuery version speed test 2 (version: 0)

Comparing performance of: $jq1124 vs $jq224 vs $jq341

Created: 4 years ago by: Guest

Jump to the latest result

$jq1124

$jq224

$jq341

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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