Benchmark: Array.prototype.some vs Lodash some

HTML Preparation code:

<script src="lodash.js"></script>

Script Preparation code:

var array = [...Array(100000).keys()];

Tests:

Array.prototype.some
array.some(n => n === 99999)
Lodash some
_.some(array,n => n === 99999)

Historical Performance Data aggregated from 5 community runs

Desktop Results:

Chrome 5 runs

Lodash some

8K/s

Array.prototype.some

2K/s

Fastest: Lodash some (4.5x faster)

View exact numbers

✓ Lodash some: 7,842 ops/sec
• Array.prototype.some: 1,725 ops/sec

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Array.prototype.some
Lodash some

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 4 days ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Safari/537.36

Browser/OS: Chrome 152 on Mac OS X 10.15.7

View result in a separate tab

Lodash some

13K/s

Array.prototype.some

2K/s

View exact numbers

Test name	Executions per second
✓ Lodash some	13,222 Ops/sec
Array.prototype.some	1,694 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and explain what's being tested, compared, and considered.

**Benchmark Overview**

The benchmark compares the performance of two approaches: `Array.prototype.some` (native JavaScript) and `_.some` (from the Lodash library).

**What is being tested?**

* How many times each approach can execute in a second, measured by the "ExecutionsPerSecond" metric.

**Options Compared**

Two options are being compared:

1. **Native JavaScript: Array.prototype.some**
	* This is a built-in JavaScript method that checks if at least one element in an array satisfies a condition.
2. **Lodash library: _.some**
	* Lodash is a popular JavaScript utility library that provides various functions for tasks like this.

**Pros and Cons**

**Native JavaScript (Array.prototype.some)**

Pros:

* Fast, as it's a built-in method optimized for performance.
* Low memory footprint, as it doesn't require loading an external library.
* Widely supported across browsers and devices.

Cons:

* Requires manual implementation of the condition, which might lead to slightly slower execution times.

**Lodash Library (.some)**

Pros:

* Convenient, as it's a single function call with no need for custom implementation.
* May be faster in some cases, depending on the specific use case and optimization by Lodash.

Cons:

* Requires loading an external library (approximately 20KB), which might impact page load times.
* May introduce additional overhead due to the library's initialization and setup processes.

**Other Considerations**

* The benchmark uses a fixed array of 100,000 elements, which is a common approach for measuring performance in microbenchmarks.
* The condition used for both methods (`n === 99999`) ensures that only one element needs to be checked, making it an efficient test case.

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides a wide range of functions for tasks like this. Its `_.some` function checks if at least one element in an array satisfies a condition and returns a boolean value. The library's optimization techniques, such as memoization and caching, can lead to faster execution times in some cases.

**Special JS Feature: None**

There are no special JavaScript features or syntaxes being tested or used in this benchmark.

**Alternatives**

If you're interested in exploring alternative approaches or libraries for similar benchmarks, consider the following:

* **ES6 Iterators**: The `Array.prototype.some` method can be compared to using ES6 iterators, which provide a more functional programming style for iterating over arrays.
* **Other Libraries**: Other utility libraries like Ramda or Liskelot might also be used as alternatives to Lodash in this benchmark.
* **Native JavaScript Alternatives**: You could explore alternative native JavaScript methods for performing similar operations, such as using `Array.prototype.some` with a custom callback function.

Array.prototype.some vs Lodash some (version: 0) Benchmark.js

Comparing performance of: `Array.prototype.some vs Lodash some`

Created: 7 years ago by: Guest

Go to the latest result

Array.prototype.some

Lodash some

Historical Performance Data aggregated from 5 community runs

Desktop Results:

Chrome 5 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

Array.prototype.some vs Lodash some (version: 0) Benchmark.js

Comparing performance of: Array.prototype.some vs Lodash some

Created: 7 years ago by: Guest

Go to the latest result

Array.prototype.some

Lodash some

Historical Performance Data aggregated from 5 community runs

Desktop Results:

Chrome 5 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

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Comparing performance of: `Array.prototype.some vs Lodash some`