Benchmark: jQuery removeClass vs jQuery classList remove

HTML Preparation code:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<div id="el" class="test"></div>

Tests:

jQuery removeClass
$("#el").removeClass("test");
jQuery classList.remove
$("#el")[0].classList.remove("test");

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
jQuery removeClass
jQuery classList.remove

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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

LLMs can make mistakes. Check important info.

Let's dive into the explanation of what is being tested in this JavaScript microbenchmark.

**Overview**

The benchmark is designed to compare two approaches for removing a CSS class from an HTML element using jQuery: `removeClass()` and `classList.remove()`. The test aims to determine which approach is faster and more efficient on different browsers and devices.

**Options Compared**

There are two options being compared:

1. **jQuery `removeClass()`**: This method removes the specified CSS class(s) from all elements that match the current selector.
2. **jQuery `classList.remove()`**: This method removes a specific CSS class from an element.

**Pros and Cons of Each Approach**

* **jQuery `removeClass()`**:
	+ Pros: Simple to use, widely supported by older browsers.
	+ Cons: May remove other classes as well, can be slower for larger lists of classes.
* **jQuery `classList.remove()`**:
	+ Pros: More precise control over which class is removed, potentially faster for smaller lists of classes.
	+ Cons: Requires jQuery 1.9 or later, may not work in older browsers.

**Library and Its Purpose**

In this benchmark, the jQuery library is used to simplify the implementation of the two approaches. The `removeClass()` method relies on internal methods to manipulate the element's class list, while the `classList.remove()` method uses the `classList` property (introduced in jQuery 1.9) to directly remove the specified class.

**Special JS Feature or Syntax**

None are explicitly mentioned in this benchmark. However, it's worth noting that the use of the `classList` property and the `.removeClass()` method is a modern JavaScript feature introduced in ECMAScript 2015 (ES6).

**Other Considerations**

The benchmark measures the execution frequency per second (`ExecutionsPerSecond`) on different browsers and devices. This provides insight into the performance characteristics of each approach across various platforms.

**Alternatives**

Some alternative approaches to removing CSS classes could include:

* Using the `style` property directly (e.g., `el.style.display = 'none';`)
* Utilizing a library like Lodash or Underscore.js for functional programming and class manipulation
* Implementing custom class removal logic using DOM manipulation

However, these alternatives may not be as efficient or user-friendly as the jQuery approach, especially when working with complex class lists.

Related benchmarks:

jQuery removeClass vs jQuery classList remove (version: 0)

Comparing performance of: jQuery removeClass vs jQuery classList.remove

Created: 6 years ago by: Guest

Jump to the latest result

jQuery removeClass

jQuery classList.remove

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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