Benchmark: Ramda equal - MeasureThat.net

HTML Preparation code:

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

Script Preparation code:

var data = _.range(10000).map(function(i) {
  return {
    counter: i,
    date: new Date(),
    name: 'Adam'
  }
});

Tests:

Ramda equal ISO String
R.uniqWith( (a, b) => R.eqBy(o => o.date.toISOString(), a, b) && R.eqBy(o => o.name, a, b), data )
Ramda equal getTime
R.uniqWith( (a, b) => R.eqBy(o => o.date.getTime(), a, b) && R.eqBy(o => o.name, a, b), data )

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Ramda equal ISO String
Ramda equal getTime

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser/OS: Chrome 135 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Ramda equal ISO String	53.3 Ops/sec
Ramda equal getTime	580.9 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's dive into explaining the provided benchmark.

**Benchmark Overview**

The benchmark tests the performance of JavaScript microbenchmarks using Ramda, a functional programming library for JavaScript. The benchmark compares two approaches to finding unique elements in an array: using the `date` property as a string and using the `date` property as a timestamp.

**Benchmark Definition JSON**

The provided benchmark definition JSON consists of three main parts:

1. **Script Preparation Code**: This code creates a sample dataset `data` containing 10,000 objects with `counter`, `date`, and `name` properties.
2. **Html Preparation Code**: This code includes the Ramda library (`ramda.min.js`) from a CDN, which is used in the benchmark tests.
3. **Benchmark Definitions**: There are two test cases:
	* "Ramda equal ISO String": This test case uses the `date` property as a string to find unique elements. The `R.uniqWith()` function takes a callback function that compares two elements based on their `date` properties. The comparison is done using the `R.eqBy()` function, which checks if both dates have the same ISO string representation.
	* "Ramda equal getTime": This test case uses the `date` property as a timestamp to find unique elements. Similar to the previous test case, it uses `R.uniqWith()` and `R.eqBy()`, but with the date comparison using the `getTime()` method.

**Options Compared**

The benchmark compares two approaches:

1. **String-based comparison**: Using the `date` property as a string (ISO format) to find unique elements.
2. **Timestamp-based comparison**: Using the `date` property as a timestamp to find unique elements.

**Pros and Cons of Each Approach**

* **String-based comparison**:
	+ Pros: Easier to understand and implement, especially for developers without deep knowledge of JavaScript.
	+ Cons: May be slower due to the overhead of converting dates to strings.
* **Timestamp-based comparison**:
	+ Pros: Can be faster since it avoids string conversions.
	+ Cons: Requires a deeper understanding of JavaScript's date handling and timestamp calculations.

**Library and Its Purpose**

Ramda is a functional programming library for JavaScript. It provides various functions for data manipulation, filtering, sorting, mapping, and more. In this benchmark, Ramda's `R.uniqWith()` function is used to find unique elements in an array based on the provided callback function. The `R.eqBy()` function is used as part of the callback to compare two elements.

**Special JS Features or Syntax**

This benchmark uses JavaScript's built-in `Date` object and its methods (`getTime()`, `toISOString()`) to handle date data. It does not use any special syntax or features beyond standard JavaScript.

**Other Alternatives**

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

* Using the `Set` data structure: You can create a Set from the array of objects and check if two elements have the same value using the `has()` method.
* Implementing your own unique element finder function: You could write a custom function that iterates over the array and checks for uniqueness based on the specified criteria.

Keep in mind that each alternative approach will have its pros and cons, and the performance results may vary depending on the specific use case.

Related benchmarks:

Ramda equal (version: 0)

Comparing performance of: Ramda equal ISO String vs Ramda equal getTime

Created: 5 years ago by: Guest

Jump to the latest result

Ramda equal ISO String

Ramda equal getTime

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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