Benchmark: Array#flat vs Ramda#flatten

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.27.0/ramda.min.js"></script>

Script Preparation code:

var data = R.range(0, 10000).map((i) => Math.floor(Math.random() * i) % 2 === 0 ? R.range(0, 3) : i);

Tests:

Ramda#flatten
const result = R.flatten(data)
Array#flat
const result = data.flat()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Ramda#flatten
Array#flat

Fastest: N/A

Slowest: N/A

Latest run results:

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

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Let's break down the benchmark and explain what's being tested.

**Benchmark Overview**

The benchmark compares two approaches to flatten an array: `Array#flat` and Ramda's `flatten` function.

**Options Compared**

* **Array#flat**: This method is a built-in JavaScript method that flattens an array by recursively calling itself with the first element of each sub-array until it reaches the desired depth.
* **Ramda#flatten**: This function is from the Ramda library, which provides functional programming utilities. `flatten` takes an array and returns a new array with all elements flattened.

**Pros and Cons**

* **Array#flat**:
	+ Pros: Built-in method, no external dependencies required.
	+ Cons: Recursive calls can lead to stack overflow issues for very deep arrays.
	+ Performance: Generally slower than Ramda's `flatten` due to the overhead of recursive function calls.
* **Ramda#flatten**:
	+ Pros: More efficient and safer (less prone to stack overflow) than Array's `flat`.
	+ Cons: External dependency required (additional library installation).
	+ Performance: Typically faster than Array's `flat`.

**Library**

In this benchmark, Ramda is used as a external library to provide the `flatten` function. Ramda is a functional programming library that provides various utilities for working with arrays and other data structures.

**Special JavaScript Feature/Syntax**

There are no specific JavaScript features or syntax mentioned in this benchmark. The focus is on comparing two different approaches to flatten an array.

**Other Alternatives**

If you're looking for alternative methods to flatten an array, some common ones include:

* **Array.prototype.reduce()**: You can use `reduce()` method to flatten an array by accumulating the results.
* **Spread operator (`...`)**: You can use the spread operator to flatten an array by spreading its elements into a new array.
* **forEach() and constructor arguments**: You can use `forEach()` method with a callback function that returns a new array of values.

For example, using `reduce()`:
```javascript
const flatArray = data.reduce((acc, val) => {
  return acc.concat(val);
}, []);
```
Using the spread operator:
```javascript
const flatArray = [...data];
```
These alternatives may have different performance characteristics and use cases compared to Array's `flat` and Ramda's `flatten`.

Related benchmarks:

Array#flat vs Ramda#flatten (version: 0)

Comparing performance of: Ramda#flatten vs Array#flat

Created: 3 years ago by: Guest

Jump to the latest result

Ramda#flatten

Array#flat

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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