Benchmark: two loops vs single loop

Script Preparation code:

var arr = [1, 2, 3, 4, 10, 23, 3, 67];

Tests:

single loop
let min = Infinity; let max = -Infinity; for(let i = 0 ; i < arr.length ; i++) { if(arr[i] < min) min = arr[i]; if(arr[i] > max) max = arr[i]; } console.log(` min: ${min} max: ${max} `);
two loops
let min = Infinity; let max = -Infinity; for(let i = 0 ; i < arr.length ; i++) { if(arr[i] < min) min = arr[i]; } for(let i = 0 ; i < arr.length ; i++) { if(arr[i] > max) max = arr[i]; } console.log(` min: ${min} max: ${max} `);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
single loop
two loops

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark definition and test cases.

**Benchmark Definition**

The benchmark is a simple JavaScript program that finds the minimum and maximum values in an array. The array is predefined and shared among all test cases.

**Script Preparation Code**

The script preparation code creates a fixed array `arr` with 8 elements:
```javascript
var arr = [1, 2, 3, 4, 10, 23, 3, 67];
```
This means that the same array is used for all test cases.

**Html Preparation Code**

There is no HTML preparation code provided, which suggests that the benchmark only tests the JavaScript execution time and does not involve any additional HTML-related tasks.

**Test Cases**

There are two test cases:

1. **Single Loop**: This test case uses a single loop to find both the minimum and maximum values in the array.
```javascript
for(let i = 0 ; i < arr.length ; i++) {
    if(arr[i] < min)
      min = arr[i];
    if(arr[i] > max)
      max = arr[i];
}
```
2. **Two Loops**: This test case uses two separate loops to find the minimum and maximum values in the array.
```javascript
for(let i = 0 ; i < arr.length ; i++) {
    if(arr[i] < min)
      min = arr[i];
}

for(let i = 0 ; i < arr.length ; i++) {
    if(arr[i] > max)
      max = arr[i];
}
```
**Options Compared**

The two test cases are compared in terms of their execution time. The single loop test case is likely to be faster because it reduces the number of iterations and function calls.

**Pros and Cons**

* **Single Loop**:
	+ Pros: potentially faster execution time, fewer iterations and function calls.
	+ Cons: may not be necessary if the array is small enough that the overhead of finding both min and max in a single pass outweighs any potential performance gains.
* **Two Loops**:
	+ Pros: may be more intuitive for developers familiar with iterating over arrays, allows for separate optimization of min and max finding.
	+ Cons: potentially slower execution time due to additional iterations and function calls.

**Library Usage**

There is no library usage in the provided benchmark definition. However, it's worth noting that in a real-world scenario, you might use libraries like Lodash or Array.prototype methods (e.g., `Math.min()`, `Math.max()`) to simplify the implementation of finding min and max values.

**Special JS Features or Syntax**

There are no special JavaScript features or syntax mentioned in the benchmark definition. It's written in standard JavaScript syntax, making it accessible to most developers.

**Other Alternatives**

If you want to test different approaches for finding min and max values, some alternatives could include:

* Using `Array.prototype.reduce()` instead of loops
* Using a single pass with a variable that gets updated on each iteration
* Using a library like Lodash or Array.prototype methods (e.g., `Math.min()`, `Math.max()`)

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36

Browser/OS: Chrome 105 on Windows

View result in a separate tab

Test name	Executions per second
single loop	70742.3 Ops/sec
two loops	66289.5 Ops/sec

Related benchmarks:

two loops vs single loop (version: 0)

Comparing performance of: single loop vs two loops

Created: 4 years ago by: Registered User

Jump to the latest result

single loop

two loops

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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