Benchmark: Some vs. Every - MeasureThat.net

Script Preparation code:

var hasZero = [];
var withoutZero = [];
for (var i = 0; i < 10000; i++) {
  hasZero.push(Math.floor(Math.random() * 1000));
  withoutZero.push(Math.floor(Math.random() * 1000) + 1)
}

Tests:

Array.some
var tempResult = !!Math.round(Math.random()) ? hasZero.some(v => v === 0) : withoutZero.some(v => v === 0);
Array.every
var tempResult = !!Math.round(Math.random()) ? hasZero.every(v => v === 0) : withoutZero.filter(v => v === 0);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Array.some
Array.every

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 and explain what is being tested, compared options, pros and cons, and other considerations.

**Benchmark Overview**

The benchmark compares two approaches to test whether an array contains at least one zero element: using `Array.some()` versus using `Array.every()`. The arrays are populated with random integers between 0 and 1000.

**Library/Function Used**

In this benchmark, we can see that the `Array.some()` function is being compared. `some()` is a method of the Array prototype in JavaScript that returns `true` if at least one element passes the test implemented by its provided function.

**Options Compared**

There are two options compared:

1. **Using `Array.every()`:**
	* In this approach, `every()` is used instead of `some()`. `every()` returns `true` if all elements pass the test implemented by its provided function.
2. **Using `Array.some()`:**
	* In this approach, `some()` is used to check if at least one element in the array equals zero.

**Pros and Cons**

1. **Using `Array.every()`:**
	* Pros:
		+ Can be more efficient than using `some()` because it short-circuits as soon as it finds an element that doesn't pass the test.
	* Cons:
		+ May not be suitable when you need to find the first zero in the array, as it will return false even if one of the elements is zero.
2. **Using `Array.some()`:**
	* Pros:
		+ Suitable for finding the first zero in an array.
	* Cons:
		+ May not be efficient for large arrays because it will iterate over all elements before returning true.

**Other Considerations**

1. **Randomization:** The benchmark uses random integers between 0 and 1000 to populate the arrays, which helps to avoid any biases or patterns that might affect the results.
2. **Loop Count:** The loop count is set to 10,000, which should provide a good sample size for the benchmark.

**Alternatives**

Other approaches could be:

1. **Using `Array.includes()`:**
	* This method returns `true` if an array contains a certain value (in this case, zero).
2. **Using a custom loop:**
	* Instead of using built-in Array methods like `some()` and `every()`, a custom loop could be used to iterate over the array and check for zeros.

Keep in mind that these alternatives might not provide the same level of efficiency or accuracy as the original implementation, but they can serve as interesting variations to explore.

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Android 11; Mobile; rv:91.0) Gecko/91.0 Firefox/91.0

Browser/OS: Firefox Mobile 91 on Android

View result in a separate tab

Test name	Executions per second
Array.some	21020.4 Ops/sec
Array.every	29563.4 Ops/sec

Related benchmarks:

Some vs. Every (version: 0)

Comparing performance of: Array.some vs Array.every

Created: 3 years ago by: Guest

Jump to the latest result

Array.some

Array.every

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):