Benchmark: concat tester2 - MeasureThat.net

HTML Preparation code:

<script src="//cdnjs.cloudflare.com/ajax/libs/ramda/0.25.0/ramda.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js"></script>
<script type='text/javascript' src='https://cdnjs.cloudflare.com/ajax/libs/immutable/3.8.2/immutable.min.js'></script>

Script Preparation code:

function double(n) {
	return n*2;
}
var data = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30];

Tests:

js
const d = data.concat(data); const e = d.concat(d); const f = e.concat(e).map(double);
ramda concat
const con = data => R.concat(data, data) const f = R.map(double,con(con(con(data))))
im
const con = data => data.concat(data) const f = con(con(con(Immutable.fromJS(data)))).map(double)
js2
const con = data => data.concat(data) const f = con(con(con(data))).map(double)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
js
ramda concat
im
js2

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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I'll break down the provided benchmark definitions and explain what's being tested, compared options, pros and cons, library usage, special JS features or syntax, and alternatives.

**Benchmark Definition Overview**

The benchmark is designed to compare the performance of different JavaScript libraries for concatenating arrays. The test consists of four individual test cases:

1. **js**: Concatenates two arrays using the `+` operator.
2. **ramda concat**: Uses Ramda's `R.concat()` function to concatenate arrays.
3. **im**: Utilizes Immutable.js library to create a new array and perform concatenation.
4. **js2**: Similar to the original **js** test case.

**Options Compared**

The benchmark compares the performance of four approaches:

1. **Native JavaScript**: Uses the `+` operator for concatenation.
2. **Ramda**: Utilizes Ramda's `R.concat()` function for array concatenation.
3. **Immutable.js**: Leverages Immutable.js library to create a new array and perform concatenation.
4. **Lodash**: Although not used directly, Lodash is included in the HTML preparation code, suggesting that its presence might affect performance (more on this later).

**Pros and Cons**

Here's a brief summary of each approach:

1. **Native JavaScript**:
	* Pros: Fast, lightweight, and widely supported.
	* Cons: May not be as efficient for large datasets due to the overhead of creating new arrays.
2. **Ramda**:
	* Pros: Provides a functional programming paradigm, making code more concise and predictable.
	* Cons: May introduce additional overhead due to function calls and object lookups.
3. **Immutable.js**:
	* Pros: Ensures predictable behavior by creating a new array instead of modifying the original.
	* Cons: Can be heavier than native JavaScript due to the additional object creation.
4. **Lodash** (included in HTML preparation code):
	* Pros: Provides an extensive set of utility functions, including array manipulation.
	* Cons: May introduce unnecessary overhead and dependencies.

**Library Usage**

In the provided benchmark definition:

1. Ramda is used for its `R.concat()` function to concatenate arrays.
2. Immutable.js library is utilized to create a new array and perform concatenation using the `con` function.

**Special JS Features or Syntax (none mentioned)**

There are no special JavaScript features or syntax specific to any of these approaches that would impact performance.

**Alternatives**

For array concatenation, other alternatives include:

1. **Array.prototype.push()**: Concatenating arrays by pushing elements onto the end.
2. **Array.prototype.concat()**: Using a method to concatenate two arrays at once.
3. **Array.from()**: Creating an empty array and then using the `push()` or `concat()` methods.

Keep in mind that these alternatives might have varying performance characteristics depending on the specific use case.

In conclusion, this benchmark compares the performance of different approaches for concatenating arrays, including native JavaScript, Ramda, Immutable.js, and Lodash. Each approach has its pros and cons, and understanding these differences can help developers choose the most suitable method for their specific needs.

Related benchmarks:

concat tester2 (version: 1)

based on https://measurethat.net/Benchmarks/Show/2649/1/map-native-vs-ramda-vs-lodash-vs-immutable

Comparing performance of: js vs ramda concat vs im vs js2

Created: 3 years ago by: Registered User

Jump to the latest result

js

ramda concat

im

js2

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):