Benchmark: Clamping: Math.mix + Math.max vs if

Script Preparation code:

this.number = Math.random() * 1000;

Tests:

Math.min + Math.max
return Math.max(250, Math.min(750, this.number));
if
if(this.number < 250) return 250; if(this.number > 750) return 750; return this.number;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Math.min + Math.max
if

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 9 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:140.0) Gecko/20100101 Firefox/140.0

Browser/OS: Firefox 140 on Mac OS X 10.15

View result in a separate tab

Test name	Executions per second
Math.min + Math.max	125737472.0 Ops/sec
if	927519872.0 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 benchmark and explain what's being tested.

**Benchmark Overview**

The benchmark, named "Clamping: Math.mix + Math.max vs if", compares two approaches to clamp (i.e., limit) a value within a specific range. The clamping function takes an input value (`this.number`) and returns the clamped value.

**Approaches Compared**

Two approaches are compared:

1. **Math.min + Math.max**: This approach uses the built-in `Math.min` and `Math.max` functions to clamp the value.
	* Pros: Simple, straightforward, and widely supported by JavaScript engines.
	* Cons: May have performance overhead due to function calls, and might not be as efficient as a simple if-else statement.
2. **if-else Statement**: This approach uses an if-else statement to check the condition and return the clamped value.
	* Pros: Can be more efficient than using built-in functions, especially for small values or optimized engines.
	* Cons: May have performance overhead due to branching, and might not be as readable or maintainable.

**Library**

In this benchmark, the `Math` library is used. The `Math` library provides various mathematical functions, including `min`, `max`, and other trigonometric, exponential, logarithmic, and root functions.

**JavaScript Features/Syntax**

This benchmark does not use any special JavaScript features or syntax beyond what's typically available in modern browsers.

**Other Considerations**

When choosing between these approaches, consider the trade-offs:

* Performance: If you need to perform clamping operations frequently, using a simple if-else statement might be more efficient. However, for small values or optimized engines, using built-in functions like `Math.min` and `Math.max` might still be acceptable.
* Code Readability/Maintainability: If the value range is small and the condition is straightforward, an if-else statement can make the code more readable. For larger ranges or complex conditions, using built-in functions might be more maintainable.

**Alternatives**

Other approaches to clamping values could include:

1. Using bitwise operators (e.g., `x &= 0xFF` for 8-bit unsigned integers)
2. Creating a custom clamping function
3. Using a different data structure (e.g., an enum or a finite map) to represent the value range

Related benchmarks:

Clamping: Math.mix + Math.max vs if (version: 0)

Comparing performance of: Math.min + Math.max vs if

Created: 8 years ago by: Registered User

Jump to the latest result

Math.min + Math.max

if

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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