Benchmark: Some and reduce - MeasureThat.net

Tests:

Reduce
let testArray = [ { id: 1, max: 18 }, { id: 2 }, { id: 3, max: 25 } ] return testArray.some(item => item.hasOwnProperty('max')) ? testArray.reduce((max, item) => item.max > max ? item.max : max, 0) : null
Other
let testArray = [ { id: 1, max: 18 }, { id: 2 }, { id: 3, max: 25 } ] let maxArray = [] const maxLimits = [] let data = testArray.forEach(item => { if(item.max) maxArray.push(item.max) }) maxLimits.push(Math.max(...maxArray)) return Math.max(maxLimits)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Reduce
Other

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

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

**Benchmark Definition JSON**

The `Script Preparation Code` field is empty, which means that no setup code is required to run the benchmark. The `Html Preparation Code` field is also empty, indicating that no HTML-specific preparation is needed.

**Individual Test Cases**

There are two test cases:

1. **"Reduce"**
	* The `Benchmark Definition` uses JavaScript's built-in `some()` and `reduce()` methods.
	* The code creates an array of objects with `id` and `max` properties, then checks if any object has a `max` property using `some()`. If true, it returns the maximum value among the objects' `max` properties by reducing them using `reduce()`.

Pros:

* Simple and straightforward implementation
* Uses built-in JavaScript methods

Cons:

* Performance may be affected by the overhead of checking if any object has a `max` property before applying `reduce()`

2. **"Other"**
	* This test case uses a different approach to achieve the same result.
	* It creates an array of maximum values from the original array using `forEach()` and `push()`, then finds the maximum value among those results using `Math.max()`.

Pros:

* No need to check if any object has a `max` property before applying reduction
* Uses `Math.max()` for finding the maximum value, which is generally faster than built-in `reduce()`

Cons:

* More verbose and complex implementation
	+ Requires creating an intermediate array of maximum values

**Library and Special JS Features**

There are no libraries used in these benchmarks. However, JavaScript's `some()` and `reduce()` methods are essential features that make the code more concise.

**Other Alternatives**

For comparison, here are some alternative approaches:

1. Using a loop to iterate over the array and manually find the maximum value:
```javascript
let max = -Infinity;
for (const item of testArray) {
  if (item.max > max) {
    max = item.max;
  }
}
return max;
```
This approach is more verbose than using `reduce()` but might be faster for very large arrays.

2. Using the spread operator (`...`) to create a new array with maximum values:
```javascript
let maxArray = [...testArray].map(item => item.max).filter(val => val !== undefined);
return Math.max(...maxArray);
```
This approach is similar to "Other" but uses an array map and filter instead of `forEach()` and `push()`.

In conclusion, the "Reduce" test case uses built-in JavaScript methods for a simple and concise implementation. The "Other" test case provides an alternative approach using a loop and manual filtering for finding the maximum value.

Related benchmarks:

Some and reduce (version: 0)

Comparing performance of: Reduce vs Other

Created: 6 years ago by: Guest

Jump to the latest result

Reduce

Other

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):