Benchmark: array find vs some + some ==

HTML Preparation code:

<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.core.js"></script>

Tests:

array find
var a = ['hello', 'a', 'bc']; var b = a.find(item => item === 'bc');
array some
var a = ['hello', 'a', 'bc']; var b = a.some(item => item === 'bc');
array find ==
var a = ['hello', 'a', 'bc']; var b = a.find(item => item == 'bc');
array some ==
var a = ['hello', 'a', 'bc']; var b = a.some(item => item == 'bc');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
array find
array some
array find ==
array some ==

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

**Overview of the Benchmark**

MeasureThat.net is a website that allows users to create and run JavaScript microbenchmarks. The provided JSON represents a benchmark definition, which compares the performance of two approaches: using the `find()` method with an arrow function versus the traditional `concat()` method, specifically with a spread operator (`...`). This comparison highlights the new ES6 spread operator's potential advantages over older methods.

**Options Compared**

Two options are compared in this benchmark:

1. **Array Find**: Uses the `find()` method with an arrow function to search for a specific value within an array.
2. **Array Some**: Uses the `some()` method with an arrow function to check if at least one element in an array satisfies a condition.

**Pros and Cons of Each Approach**

### Array Find (`find()` method)

Pros:

* More explicit and readable way to find a specific value in an array.
* Can be more efficient than `some()` when the array is small, as it returns as soon as it finds a match.
* Allows for early termination, which can improve performance.

Cons:

* May not be as concise or expressive as using `some()`.
* Requires the use of an arrow function, which may add overhead due to syntax parsing.

### Array Some (`some()` method)

Pros:

* More concise and expressive way to check if at least one element in an array satisfies a condition.
* Can be more efficient than `find()` when the array is large, as it continues searching until it finds a match or reaches the end of the array.

Cons:

* Returns as soon as it finds a match, which may lead to unnecessary computations if no match is found.
* May not be as readable or explicit as using `find()`

**Library and Special JavaScript Feature**

The provided benchmark uses the Lodash library (`lodash.core.js`) for the `some()` method. This library provides an implementation of the `some()` method that can be used in a more concise way than writing it from scratch.

No special JavaScript features are mentioned in the benchmark definition or results.

**Alternative Approaches**

Other approaches to compare performance with `find()` and `some()` methods could include:

* Using traditional loops (e.g., `for` loop, `while` loop) instead of array methods.
* Using other search algorithms, such as binary search.
* Comparing the performance of different JavaScript engines or browsers.

These alternative approaches can provide additional insights into the performance characteristics of the `find()` and `some()` methods in specific use cases.

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36

Browser/OS: Chrome 111 on Windows

View result in a separate tab

Test name	Executions per second
array find	187237952.0 Ops/sec
array some	198251712.0 Ops/sec
array find ==	185269408.0 Ops/sec
array some ==	197929952.0 Ops/sec

Related benchmarks:

array find vs some + some == (version: 0)

Compare the new ES6 spread operator with the traditional concat() method

Comparing performance of: array find vs array some vs array find == vs array some ==

Created: one year ago by: Guest

Jump to the latest result

array find

array some

array find ==

array 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):