Benchmark: Add alpha color - MeasureThat.net

Script Preparation code:

function addAlpha(color, opacity) {
    // coerce values so ti is between 0 and 1.
    const _opacity = Math.round(Math.min(Math.max(opacity || 1, 0), 1) * 255);
    return color + _opacity.toString(16).toUpperCase();
}

function hex2rgba(hex, alpha = 1) {
  const [r, g, b] = hex.match(/\w\w/g).map(x => parseInt(x, 16));
  return `rgba(${r},${g},${b},${alpha})`;
}

Tests:

addAlpha
addAlpha('FF0000', 0.5);
hex2rgba
hex2rgba('FF0000', 0.5);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
addAlpha
hex2rgba

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):

LLMs can make mistakes. Check important info.

I'll break down the provided benchmark JSON and explain what's being tested, the options compared, pros and cons of each approach, and other considerations.

**Benchmark Definition**

The benchmark definition is a JavaScript function that takes two arguments: `color` and `opacity`. The function, named `addAlpha`, returns a new color with alpha transparency. The function uses a library function `hex2rgba` to convert the input color from hexadecimal to RGBA format.

Here's what the `addAlpha` function does:

1. It takes an optional `opacity` value between 0 and 1.
2. If no opacity value is provided, it defaults to 1 (fully opaque).
3. It rounds the opacity value to the nearest integer by multiplying it with 255 and taking the modulo of 256.
4. It converts the rounded opacity value back to hexadecimal using `toString(16)` and `toUpperCase()`.
5. It concatenates the original color string with the new alpha transparency value.

The `hex2rgba` function is not defined in this benchmark definition, but it's likely a utility function that takes a hexadecimal color value and returns an RGBA equivalent.

**Options Compared**

In this benchmark, there are two options compared:

1. **Color conversion with alpha transparency**: The `addAlpha` function uses the `hex2rgba` library function to convert the input color from hexadecimal to RGBA format.
2. **Raw color string concatenation**: A possible alternative implementation that simply concatenates the original color string with the new alpha transparency value (without converting to RGBA).

**Pros and Cons of Each Approach**

1. **Color conversion with alpha transparency**:
	* Pros:
		+ More accurate representation of colors with alpha transparency.
		+ Easier to work with in various applications, such as graphics and design tools.
	* Cons:
		+ May require additional library dependencies (e.g., `hex2rgba`).
		+ Can be slower due to the conversion process.
2. **Raw color string concatenation**:
	* Pros:
		+ Faster execution time since no external library functions are called.
		+ Less dependent on specific libraries or formats.
	* Cons:
		+ May result in less accurate representation of colors with alpha transparency.
		+ Can lead to issues when working with certain applications or libraries.

**Other Considerations**

In addition to the two options compared, other factors that might influence the benchmark results include:

1. **Browser and device support**: Different browsers and devices may have varying levels of support for RGBA color formats.
2. **JavaScript engine optimizations**: Modern JavaScript engines often optimize built-in functions like `Math.min` and `Math.max`, which can affect the execution speed of these benchmarks.

**Alternatives**

If you're interested in exploring alternative approaches or comparing different algorithms, here are some suggestions:

1. **Manually implementing RGBA color conversion**: Write your own function to convert hexadecimal colors to RGBA format.
2. **Using a different library for color manipulation**: Consider using libraries like `color-convert` or `rgba-js` instead of `hex2rgba`.
3. **Comparing execution times with different input values**: Test the benchmarks with varying opacity values or color inputs to see how they scale.

Feel free to ask if you'd like more information on any of these alternatives!

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.74 Safari/537.36

Browser/OS: Chrome 99 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
addAlpha	3851455.5 Ops/sec
hex2rgba	1723586.5 Ops/sec

Related benchmarks:

Add alpha color (version: 0)

Comparing performance of: addAlpha vs hex2rgba

Created: 2 years ago by: Guest

Jump to the latest result

addAlpha

hex2rgba

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):