Benchmark: JavaScript Array: Every vs Some

Script Preparation code:

var statuses = [true, true, true, true, true, true, true, true, true, false, true, false, true, true, false];

Tests:

Using Every
const allTrue = statuses.every(status => status); console.log(allTrue);
Using Some
const allTrue = statuses.some(status => !status); console.log(allTrue);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Using Every
Using Some

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 7 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Browser/OS: Chrome 123 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Using Every	597959.4 Ops/sec
Using Some	601422.6 Ops/sec

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.

**Benchmark Definition**

The benchmark is testing the performance of two different methods in JavaScript: `every` and `some`. The `every` method returns `true` if all elements in an array pass a test, while the `some` method returns `true` if at least one element passes a test.

**Options Compared**

In this benchmark, only two options are being compared:

1. Using the `every` method.
2. Using the `some` method.

**Pros and Cons of Each Approach**

* **Using `every`:**
	+ Pros:
		- Can be faster when all elements pass a test, as it short-circuits and returns immediately.
		- Can be useful in scenarios where you need to verify that all elements meet a certain condition.
	+ Cons:
		- May be slower when only one element passes the test, as it still needs to check all other elements.
		- Returns `false` if any element fails the test, which may not be desirable in some cases.
* **Using `some`:**
	+ Pros:
		- Can be faster when at least one element passes the test, as it short-circuits and returns immediately.
		- Returns `true` as soon as an element passes the test, which can be convenient in some scenarios.
	+ Cons:
		- May be slower than using `every` when all elements pass a test.
		- Returns `false` if no element passes the test, which may not be desirable in some cases.

**Library and Special JS Features**

In this benchmark, there is no specific library used. However, it's worth noting that both `every` and `some` methods are part of the ECMAScript standard, so they are supported by most modern JavaScript engines.

There are no special JavaScript features or syntax being tested in this benchmark. The code is simple and straightforward, using only basic array operations.

**Other Alternatives**

If you needed to perform similar tests on different array operations, some other alternatives might include:

* Using `forEach` instead of `every` or `some`, which would iterate over the elements individually.
* Using `filter` instead of `every` or `some`, which would return a new array with only the elements that pass the test.
* Using a custom loop to check each element individually, without relying on built-in methods.

It's worth noting that these alternatives might not provide the same level of performance as using optimized built-in methods like `every` and `some`.

Related benchmarks:

JavaScript Array: Every vs Some (version: 1)

Compare the performance of using the Every and Some method in an Array

Comparing performance of: Using Every vs Using Some

Created: one year ago by: Registered User

Jump to the latest result

Using Every

Using Some

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):