Benchmark: testee - MeasureThat.net

HTML Preparation code:

<div id="test"></div>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>

Tests:

jquery
$("#test");
dom
document.getElementById("test");
window
window["test"]
querySelector
document.querySelector("#test")

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
jquery
dom
window
querySelector

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net.

**What is tested?**

MeasureThat.net tests various approaches to accessing and manipulating DOM elements in a web page using JavaScript. The benchmark compares four different methods:

1. jQuery (`$`)
2. `document.getElementById()`
3. `window['test']` (using bracket notation)
4. `document.querySelector()` with the CSS selector `#test`

**Options compared**

The benchmark tests how quickly each approach can execute a simple script that accesses and manipulates a DOM element.

**Pros and Cons of each approach:**

1. **jQuery (`$`)**:
	* Pros: jQuery is a popular library that simplifies DOM manipulation, making it easy to access elements using a fluent API.
	* Cons: Adding an external library can increase the size of the page's footprint, potentially affecting performance.
2. **`document.getElementById()`**:
	* Pros: This method uses native JavaScript and doesn't require any external libraries, which can be beneficial for small projects or those with tight resource constraints.
	* Cons: It requires more code to achieve the same result as jQuery, making it less concise.
3. **`window['test']` (using bracket notation)**:
	* Pros: This method is straightforward and doesn't require any external libraries.
	* Cons: Bracket notation can be slower than native JavaScript methods like `document.getElementById()`, especially for complex expressions.
4. **`document.querySelector()` with the CSS selector `#test`**:
	* Pros: This method uses a powerful query language to select elements, making it flexible and concise.
	* Cons: It requires knowledge of CSS selectors, which can be overwhelming for beginners.

**Library usage**

In this benchmark, jQuery is used in its entirety (`$(" #test";`). This means that the entire library is loaded and executed before any test cases are run. The other methods do not require any external libraries.

**Special JS feature or syntax**

The only special JavaScript feature/syntax mentioned in this benchmark is bracket notation (`window['test']`), which allows accessing properties using a dynamic key. This can be useful for certain use cases, but it's generally slower than native JavaScript methods.

**Other alternatives**

If you're interested in exploring alternative approaches to DOM manipulation in JavaScript, some popular options include:

1. **vanilla-JS**: Using only native JavaScript functions like `document.querySelector()` and other DOM-related APIs.
2. **React or Angular**: Frameworks that provide their own set of libraries and tools for building web applications.
3. **Other libraries**: Libraries like jQuery's competitors (e.g., Lodash), or specialized libraries for specific tasks (e.g., CSS selector libraries).

Keep in mind that these alternatives might offer trade-offs in terms of performance, complexity, and learning curve.

I hope this explanation helps you understand the benchmarking context on MeasureThat.net!

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.157 Safari/537.36

Browser/OS: Chrome 74 on Windows

View result in a separate tab

Test name	Executions per second
jquery	1004582.8 Ops/sec
dom	3636759.0 Ops/sec
window	2106442.5 Ops/sec
querySelector	2014105.5 Ops/sec

Related benchmarks:

testee (version: 0)

Comparing performance of: jquery vs dom vs window vs querySelector

Created: 5 years ago by: Guest

Jump to the latest result

jquery

dom

window

querySelector

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):