Benchmark: matchMedia vs document.body.clientWidth

HTML Preparation code:


<style>
  #before:before {
  	content: "a";
 	 display: none;
  }
  @media(min-width: 200px) {
  	#body {
  		background: red;
  	content: "b";
  	}
  }
  @media(min-width: 600px) {
  	#body {
  		background: blue;
  	content: "c";
  	}
  }
  @media(min-width: 1000px) {
  	#body {
  		background: yellow;
  	content: "d";
  	}
  }
</style>
<div id="body">
</div>

Tests:

clientWidth
document.documentElement.clientWidth;
matchMedia
window.matchMedia("(min-width: 400px)").matches;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
clientWidth
matchMedia

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 24 days ago):

LLMs can make mistakes. Check important info.

Let's break down the benchmark test and explain what's being tested, compared, and considered.

**What is being tested?**

The benchmark test compares two approaches:

1. `document.documentElement.clientWidth`: This method returns the width of the client area (the visible area) of the HTML document.
2. `window.matchMedia("min-width: 400px").matches`: This method checks if a media query condition is met, in this case, a minimum width of 400 pixels.

**Options compared**

The benchmark test compares two options:

A) Using `document.documentElement.clientWidth` to get the client area width.
B) Using `window.matchMedia("min-width: 400px").matches` to check if the media query condition is met.

**Pros and Cons of each approach**

**Approach A: `document.documentElement.clientWidth`**

Pros:

* Easy to use and understand.
* No external dependencies or libraries required.

Cons:

* May not be suitable for complex layout scenarios or responsive design situations where client area width changes dynamically.
* May require additional calculations to account for scroll position, zoom level, etc.

**Approach B: `window.matchMedia("min-width: 400px").matches`**

Pros:

* More accurate and reliable in certain scenarios (e.g., when dealing with multiple media queries or complex layouts).
* Can be used to check for media query conditions without having to calculate the client area width manually.

Cons:

* Requires a good understanding of CSS media queries and matchMedia API.
* May require more setup and configuration, especially when working with complex media queries.

**Other considerations**

Both approaches have their strengths and weaknesses. Approach A is simpler and more straightforward but might not be suitable for all use cases. Approach B provides more accuracy and reliability in certain scenarios but requires a deeper understanding of CSS media queries and matchMedia API.

**Libraries used**

There is no explicit library mentioned in the benchmark test, but it's worth noting that `matchMedia` relies on the `CSSOM` (CSS Object Model) API, which is part of the W3C Web APIs specification. This means that `matchMedia` works with modern browsers that support CSS media queries.

**Special JS features or syntax**

There are no special JavaScript features or syntax mentioned in this benchmark test. The code uses standard JavaScript and HTML/CSS syntax.

Now, regarding alternatives to these approaches:

* For simple cases where client area width is needed, other methods like `document.body.clientWidth` or using a CSS framework like Bootstrap might be suitable.
* For more complex scenarios or responsive design situations, libraries like Media Queries or Flexbox might be necessary.

Latest run results:

Run details: (Test run date: 5 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.87 Safari/537.36

Browser/OS: Chrome 76 on Mac OS X 10.14.6

View result in a separate tab

Test name	Executions per second
clientWidth	1394860.2 Ops/sec
matchMedia	356159.3 Ops/sec

Related benchmarks:

matchMedia vs document.body.clientWidth (version: 0)

Comparing performance of: clientWidth vs matchMedia

Created: 5 years ago by: Guest

Jump to the latest result

clientWidth

matchMedia

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 24 days ago):