Benchmark: native find vs lodash _.find vs ramda

HTML Preparation code:

<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.core.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.26.1/ramda.js"></script>

Script Preparation code:

var users = [
  { 'user': 'joey',  'age': 32 },
  { 'user': 'ross',    'age': 41 },
  { 'user': 'chandler', 'age': 39 }
]

Tests:

array find
// Native users.find(function (o) { return o.age < 40; })
_.find
_.find(users, function (o) { return o.age < 40; })
R.find
R.find(R.propSatisfies(R.lt(40), 'age'), users)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
array find
_.find
R.find

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 29 days ago):

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net.

**Overview**

MeasureThat.net is a platform that allows users to create and run JavaScript microbenchmarks, comparing different approaches to perform various operations. The website provides a simple way to test performance differences between different methods, libraries, or techniques.

**Benchmark Definition JSON**

The provided Benchmark Definition JSON represents a benchmark with three test cases:

1. "Native"
2. "_find" (using Lodash's `_.find` method)
3. "R.find" (using Ramda's `R.find` function)

In the Script Preparation Code section, we can see that the benchmark is testing an array of objects, where each object has a `user` and `age` property. The script uses the spread operator to create a new array.

**Test Cases**

Each test case represents a different approach to find an element in the array based on a condition:

1. **Native**: Uses the native JavaScript `find` method without any libraries.
2. **_.find (Lodash)**: Uses Lodash's `_find` method, which is a functional programming approach that takes an array and a predicate function as arguments.
3. **R.find (Ramda)**: Uses Ramda's `R.find` function, which is another functional programming approach that takes an array and a predicate function as arguments.

**Options Compared**

The benchmark compares three options:

* Native JavaScript `find` method
* Lodash's `_find` method
* Ramda's `R.find` function

Each option has its pros and cons:

* **Native JavaScript `find` method**: Pros - Fast, lightweight, and widely supported. Cons - Can be slower than other approaches for large arrays.
* **Lodash's _.find** method: Pros - Easy to use, flexible, and well-tested. Cons - Adds an external dependency (Lodash) which can increase bundle size.
* **Ramda's R.find** function: Pros - Expressive, functional programming style, and highly customizable. Cons - Can be less intuitive for non-functional programmers.

**Other Considerations**

When choosing between these options, consider the following factors:

* Performance requirements: If speed is critical, native JavaScript might be a better choice.
* Code readability and maintainability: Lodash's `_find` method can make code more concise, while Ramda's `R.find` function provides an expressive way to define predicates.
* Library dependencies: Adding external libraries like Lodash or Ramda may increase bundle size or complexity.

**Library Descriptions**

1. **Lodash**: A popular JavaScript utility library that provides a wide range of functions for tasks such as array manipulation, string processing, and more.
2. **Ramda**: A functional programming library for JavaScript that provides a set of higher-order functions to manipulate and transform data.

In the provided benchmark, both Lodash and Ramda are used to implement the `_find` method, which allows users to compare their performance.

**Special JS Feature or Syntax**

The spread operator (`...`) is used in the Script Preparation Code section to create a new array. This feature is a relatively recent addition to JavaScript (introduced in ECMAScript 2015) and provides a concise way to create arrays from other iterables.

Overall, MeasureThat.net's benchmarking approach allows users to easily compare performance differences between various methods, libraries, or techniques, making it an excellent tool for evaluating and optimizing code.

Latest run results:

Run details: (Test run date: 2 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Browser/OS: Chrome 128 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
array find	11563081.0 Ops/sec
_.find	3699304.5 Ops/sec
R.find	1272111.6 Ops/sec

Related benchmarks:

native find vs lodash _.find vs ramda (version: 0)

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

Comparing performance of: array find vs _.find vs R.find

Created: 5 years ago by: Guest

Jump to the latest result

array find

_.find

R.find

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 29 days ago):