Benchmark: Array.prototype.find vs Lodash find 2

HTML Preparation code:

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

Script Preparation code:

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

Tests:

Array.prototype.find
array.find(n => n === 50000)
Lodash find
_.find(array,n => n === 50000)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Array.prototype.find
Lodash find

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 6 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36

Browser/OS: Chrome 70 on Mac OS X 10.14.1

View result in a separate tab

Test name	Executions per second
Array.prototype.find	1768.7 Ops/sec
Lodash find	898.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down what is tested in the provided JSON benchmark.

**What is being tested?**

The benchmark tests two different ways to find an element in an array:

1. Using `Array.prototype.find` (native JavaScript method)
2. Using `_._find` from the Lodash library (a popular utility library for JavaScript)

**Options compared:**

The benchmark compares the performance of these two approaches on a large array with 100,000 elements.

**Pros and Cons of each approach:**

1. `Array.prototype.find`:
	* Pros:
		+ Native JavaScript method, no additional dependencies required
		+ Efficient use of CPU resources (no overhead from external libraries)
		+ Can be optimized by browsers for better performance
	* Cons:
		+ May not have built-in optimizations for specific use cases or edge cases
		+ Can be slower than a well-optimized library due to lack of specialization
2. `_._find` from Lodash:
	* Pros:
		+ Well-tested and optimized by the authors of Lodash
		+ Can handle edge cases and performance optimizations specifically designed for this method
		+ Easy to use, as it's a part of a larger utility library with many other useful functions
	* Cons:
		+ Requires an additional dependency (the Lodash library)
		+ May have some overhead due to the library's functionality and optimization

**Library:**

In this case, the library being used is Lodash. Lodash is a popular JavaScript utility library that provides various high-level functions for tasks such as array manipulation, string manipulation, and more.

Lodash's `_._find` function is specifically designed for finding elements in arrays. It takes two arguments: the array to search in, and a callback function that returns the desired element. The function uses a modified binary search algorithm under the hood to find the target element efficiently.

**Special JS feature or syntax:**

There doesn't appear to be any special JavaScript features or syntax being used in this benchmark. Both `Array.prototype.find` and Lodash's `_._find` use standard JavaScript syntax for their implementation.

**Other alternatives:**

If you were to optimize `Array.prototype.find` instead of using a library like Lodash, you could explore the following approaches:

* Implementing your own binary search algorithm
* Using a more efficient data structure, such as a trie or a suffix tree
* Leveraging browser-specific optimizations, such as SIMD (Single Instruction, Multiple Data) instructions

However, these alternatives might not provide significant performance improvements over the well-tested and optimized Lodash library.

**Other considerations:**

When choosing between `Array.prototype.find` and Lodash's `_._find`, consider the following factors:

* Performance requirements: If you need extremely high performance, using a native JavaScript method like `Array.prototype.find` might be preferred. However, if you prioritize ease of use and don't mind the additional dependency, Lodash's `_._find` is still a good choice.
* Code complexity: Using a library like Lodash can add some extra dependencies to your project, but it also provides a clear and concise implementation that can simplify your codebase.

Ultimately, the choice between `Array.prototype.find` and Lodash's `_._find` depends on your specific use case, performance requirements, and personal preference.

Related benchmarks:

Array.prototype.find vs Lodash find 2 (version: 0)

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

Created: 6 years ago by: Guest

Jump to the latest result

Array.prototype.find

Lodash find

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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