Benchmark: Flatmaps with native

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var arr = [['a', 'b', 'd']];

Tests:

flatMap Concat
const flatMap = (array) => { return [].concat(...array) } flatMap(arr);
flatMap reduce
const flatMap = (array) => { return array.reduce((acc, val) => acc.concat(val)); } flatMap(arr);
flatMap lodash
_.flatMap(arr);
flatMap native
const flatMap = (array) => { return array.flatMap(i => i); } flatMap(arr);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
flatMap Concat
flatMap reduce
flatMap lodash
flatMap native

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.16; rv:85.0) Gecko/20100101 Firefox/85.0

Browser/OS: Firefox 85 on Mac OS X 10.16

View result in a separate tab

Test name	Executions per second
flatMap Concat	7679267.0 Ops/sec
flatMap reduce	42632640.0 Ops/sec
flatMap lodash	10319760.0 Ops/sec
flatMap native	11967573.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's dive into explaining the provided JavaScript microbenchmarks.

**Benchmark Definition**

The benchmark definition is a JSON object that contains information about the test case. In this case, it provides the script preparation code and HTML preparation code for the benchmark. The script preparation code defines an array `arr` with nested arrays, while the HTML preparation code links to a version of Lodash.js library.

**Test Cases**

There are four individual test cases:

1. **flatMap Concat**: This test case uses the native JavaScript implementation of `flatMap`, which is implemented as `Array.prototype.concat()` followed by `Array.prototype.flatMap()`.
2. **flatMap reduce**: This test case uses the native JavaScript implementation of `flatMap` using the `reduce()` method.
3. **flatMap lodash**: This test case uses a version of Lodash.js library that provides an implementation of `flatMap`.
4. **flatMap native**: This test case uses a custom implementation of `flatMap` that is similar to the native JavaScript implementation.

**Options Compared**

The benchmark compares four different implementations of `flatMap`:

1. Native JavaScript (Concat and Reduce): These two options use built-in methods in JavaScript to implement `flatMap`. The Concat option uses `Array.prototype.concat()` followed by `Array.prototype.flatMap()`, while the Reduce option uses `Array.prototype.reduce()`.
2. Lodash.js: This option uses a third-party library, Lodash.js, that provides an implementation of `flatMap`.
3. Custom Native (flatMap native): This test case uses a custom implementation of `flatMap` that is similar to the native JavaScript implementation.

**Pros and Cons**

Here are some pros and cons for each option:

1. **Native JavaScript (Concat and Reduce)**:
	* Pros: Built-in, efficient, and easy to understand.
	* Cons: May have performance issues depending on the input size.
2. **Lodash.js**: 
	* Pros: Well-maintained, tested, and widely used library with a large community.
	* Cons: Adds an external dependency, may have overhead due to its size and complexity.
3. **Custom Native (flatMap native)**:
	* Pros: Custom implementation can be optimized for specific use cases or performance-critical sections of the codebase.
	* Cons: Requires additional development effort, debugging, and testing.

**Library Explanation**

Lodash.js is a popular JavaScript library that provides a collection of functions for functional programming. The `flatMap` function in Lodash.js is an implementation of the Array.prototype.flatMap() method. It takes two arguments, an array and a callback function, which returns the mapped values.

**Special JS Feature or Syntax**

There are no special JavaScript features or syntax mentioned in this benchmark.

Now that we have covered each aspect, let's discuss other alternatives:

* **Other implementations**: There may be other libraries or frameworks that provide their own implementation of `flatMap`. Examples include Ramda.js and Immutable.js.
* **Native optimization techniques**: Depending on the specific use case and input size, there might be opportunities to optimize the native JavaScript implementation of `flatMap`.
* **Alternative programming paradigms**: The benchmark could explore alternative programming paradigms, such as functional programming or concurrent programming, that might offer different approaches to solving similar problems.

Keep in mind that these alternatives are not directly related to the original benchmark but can provide interesting perspectives and trade-offs.

Related benchmarks:

Flatmaps with native (version: 0)

Comparing performance of: flatMap Concat vs flatMap reduce vs flatMap lodash vs flatMap native

Created: 3 years ago by: Guest

Jump to the latest result

flatMap Concat

flatMap reduce

flatMap lodash

flatMap native

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):