Benchmark: JQuery version speed test

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/3.3.1/jquery.min.js"></script>
<script>
  var $jq331 = $.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);
$jq331
tests($jq331);

Historical Performance Data aggregated from 5 community runs

Desktop Results:

Chrome 5 runs

$jq331

46K/s

$jq224

44K/s

$jq1124

35K/s

Fastest: $jq331 (1.3x faster)

View exact numbers

✓ $jq331: 45,672 ops/sec
• $jq224: 43,713 ops/sec
• $jq1124: 35,344 ops/sec

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
$jq1124
$jq224
$jq331

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.36

Browser/OS: Chrome 147 on Mac OS X 10.15.7

View result in a separate tab

$jq331

166K/s

$jq224

160K/s

$jq1124

128K/s

View exact numbers

Test name	Executions per second
✓ $jq331	165,808 Ops/sec
$jq224	159,942 Ops/sec
$jq1124	128,249 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided JSON data and explain what's being tested.

**Benchmark Definition**

The benchmark definition is represented by the `Script Preparation Code` section, which contains a JavaScript function named `tests($)`. This function takes a jQuery object `$` as an argument and performs some operations on it. Specifically:

* It selects the element with class `menu-item` at index 2 using `.eq(2)` and its parent using `.closest("ul")`.
* It sets the background color of the selected elements to red, blue, green, and removes them.
* It logs a message to the console indicating that the jQuery object `$` is being used.

**Options Compared**

The benchmark compares different versions of jQuery:

1. `$.noConflict(true)` with jQuery version 1.12.4 (`$jq1124`)
2. `$.noConflict(true)` with jQuery version 2.2.4 (`$jq224`)
3. `$.noConflict(true)` with jQuery version 3.3.1 (`$jq331`)

These options are compared by calling the `tests($)` function with each of these jQuery objects as an argument.

**Pros and Cons**

Using different versions of jQuery can have pros and cons:

* **Pros:**
	+ Testing different versions allows developers to identify performance differences between versions.
	+ It can help identify bugs or regressions that occur when using older versions of jQuery.
* **Cons:**
	+ Using multiple versions can increase the complexity of the benchmark, making it harder to understand and maintain.
	+ Different versions of jQuery may have varying levels of support for certain features or libraries.

**Library and Its Purpose**

The `$.noConflict()` method is a jQuery function that allows developers to use a library like Prototype in addition to jQuery. When called with `true`, it returns an alias (`$`) that doesn't conflict with the original jQuery object, allowing developers to use both libraries simultaneously.

In this benchmark, `$.noConflict(true)` is used to create separate aliases for each version of jQuery, which is necessary because they are loaded in different orders.

**Special JS Features or Syntax**

There's no special JavaScript feature or syntax used in this benchmark. The code only uses standard JavaScript and jQuery features.

**Alternatives**

Other alternatives for benchmarking JavaScript performance could include:

1. Using a testing framework like Jest or Mocha, which provide built-in support for benchmarking.
2. Utilizing a library like Benchmark.js, which is specifically designed for benchmarking JavaScript code.
3. Creating a custom benchmark using a loop and timing the execution of a specific piece of code.

Keep in mind that each alternative has its own strengths and weaknesses, and the choice ultimately depends on the specific requirements of the project.

JQuery version speed test (version: 0) Benchmark.js

Comparing performance of: `$jq1124 vs $jq224 vs $jq331`

Created: 8 years ago by: Guest

Go to the latest result

$jq1124

$jq224

$jq331

Historical Performance Data aggregated from 5 community runs

Desktop Results:

Chrome 5 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

JQuery version speed test (version: 0) Benchmark.js

Comparing performance of: $jq1124 vs $jq224 vs $jq331

Created: 8 years ago by: Guest

Go to the latest result

$jq1124

$jq224

$jq331

Historical Performance Data aggregated from 5 community runs

Desktop Results:

Chrome 5 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

Related benchmarks

Comparing performance of: `$jq1124 vs $jq224 vs $jq331`