Benchmark: R.isEmpty vs Object.keys().length

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.28.0/ramda.min.js"></script>

Script Preparation code:

window.obj = {};

for (var i = 0, len = 100; i < len; i++) {
  obj['key' + i] = 'value' + i;
}

Tests:

R
R.isEmpty(window.obj);
vanilla
Object.keys(window.obj).length === 0;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
R
vanilla

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser/OS: Chrome 119 on Windows

View result in a separate tab

Test name	Executions per second
R	231999.0 Ops/sec
vanilla	338315.2 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided JSON data and explain what's being tested, compared, and some pros/cons of each approach.

**Benchmark Definition**

The benchmark definition is comparing two approaches to detect an empty object: `R.isEmpty(window.obj)` (using Ramda's `isEmpty` function) versus `Object.keys(window.obj).length === 0` (using vanilla JavaScript).

**Script Preparation Code**

The script preparation code creates a large object with 100 properties, each initialized with a string value. This is done to ensure that the benchmark is testing the performance of both approaches on an object with a significant number of elements.

**Html Preparation Code**

The HTML preparation code includes a reference to Ramda's JavaScript library (version 0.28.0) using the `script` tag. This suggests that the benchmark is intended to test the performance of Ramda's functions versus vanilla JavaScript.

**Individual Test Cases**

There are two test cases:

1. **R.isEmpty(window.obj)**: This test case measures the execution time of Ramda's `isEmpty` function on an empty object.
2. **Object.keys(window.obj).length === 0**: This test case measures the execution time of a vanilla JavaScript approach using the `Object.keys()` method and checking if the length is 0.

**Pros and Cons**

* **Ramda's `isEmpty` function**:
	+ Pros: Simple, concise, and efficient implementation.
	+ Cons: May incur a small overhead due to the need to import Ramda's library and load its runtime code.
* **Vanilla JavaScript approach**:
	+ Pros: No external dependencies or library overhead. Well-established and widely supported method.
	+ Cons: More verbose and less concise than Ramda's `isEmpty` function.

**Library - Ramda**

Ramda is a popular functional programming library for JavaScript that provides a set of reusable functions for common tasks, such as data processing, filtering, mapping, and more. The `isEmpty` function is one of its many utility functions that returns `true` if the input value is an empty object, array, or other collection.

**Special JS Feature - Arrow Functions (not used in this benchmark)**

Arrow functions are a syntax feature introduced in ECMAScript 2015 that allows for concise and expressive code. In this benchmark, arrow functions are not explicitly used, but it's worth noting that some of Ramda's functions may use arrow function syntax internally.

**Other Alternatives**

If you're interested in exploring alternative approaches or libraries, here are a few options:

* **Lodash**: A popular utility library for JavaScript that provides many similar functions to Ramda, including `isEmpty`.
* **V8's built-in methods**: Some browsers (like Chrome) have implemented optimized versions of certain methods, such as `Object.keys()` and `Array.prototype.length`, which may be faster than vanilla JavaScript approaches.
* **Native JavaScript implementations**: Depending on the specific browser and platform, native JavaScript implementations of certain functions may be faster or more efficient than library-based solutions.

Related benchmarks:

R.isEmpty vs Object.keys().length (version: 0)

Compare lambda vs vanilla to detect empty object

Comparing performance of: R vs vanilla

Created: 3 years ago by: Guest

Jump to the latest result

R

vanilla

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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