Benchmark: Math.min vs if - MeasureThat.net

Script Preparation code:

var a = Math.random() * 1000
var b = Math.random() * 1000
var c = Math.random() * 1000

Tests:

Math.min()
return Math.min(a, b, c)
if
if (a < b && a < c) return a else if (b < a && b < c) return b else return c

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Math.min()
if

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 break down the provided benchmark and explain what is being tested, compared, and their pros and cons.

**Benchmark Definition JSON**

The benchmark definition represents a simple microbenchmark that compares two approaches: `Math.min()` and an if-else statement to find the minimum value among three random numbers (`a`, `b`, and `c`).

**Script Preparation Code**

The script preparation code generates three random numbers, `a`, `b`, and `c`, which are used as input for both benchmark definitions.

```javascript
var a = Math.random() * 1000;
var b = Math.random() * 1000;
var c = Math.random() * 1000;
```

**Comparison of Options**

There are two approaches being compared:

1. **Math.min()**: This function takes three arguments and returns the smallest value among them.
2. **If-else statement**: This approach uses an if-else statement to compare the values of `a`, `b`, and `c` and return the minimum value.

**Pros and Cons**

**Math.min():**

Pros:

* Shorter code
* More concise
* Less chance of errors (fewer branches)
* Generally faster for small inputs

Cons:

* May not be as efficient for very large inputs due to its nature (comparing values one by one)
* Limited control over the comparison process

**If-else statement:**

Pros:

* Allows more control over the comparison process
* Can handle more complex logic or edge cases
* Suitable for larger inputs where the number of comparisons is smaller compared to Math.min()

Cons:

* Longer code
* More prone to errors (more branches)
* Generally slower due to the additional overhead of conditional checks

**Library and Special JS Feature**

There is no specific library used in this benchmark, but it uses a common JavaScript function `Math.random()` to generate random numbers.

**Other Considerations**

The benchmark's performance can be influenced by factors such as:

* The specific implementation of Math.min() in the browser (if not the standard JavaScript implementation)
* The caching behavior of if-else statements
* The presence of other overhead or computations during execution

**Alternative Approaches**

Other possible approaches to compare could include:

* Using a custom algorithm for finding the minimum value (e.g., sorting the values and returning the first element)
* Using bitwise operations (e.g., comparing values using bitwise operators)

Related benchmarks:

Math.min vs if (version: 0)

Comparing performance of: Math.min() vs if

Created: 5 years ago by: Guest

Jump to the latest result

Math.min()

if

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):