Benchmark: luxon3-vs-date-format-fromJSDate

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/luxon@3.4.4/build/global/luxon.min.js"></script>

Script Preparation code:

window.ds = "2020-02-19T00:51:53.623839+00:00";
window.formatDate = function (date, includeTime, dateDelimiter = '/') {
  let hours = date.getHours();
  const minutes = date.getMinutes();
  const seconds = date.getSeconds();

  const fullSeconds = seconds < 10 ? `0${seconds}` : seconds;
  const fullMinutes = minutes < 10 ? `0${minutes}` : minutes;
  const ampm = hours >= 12 ? 'PM' : 'AM';
  hours = hours % 12;
  hours = hours ? hours : 12;

  if (!includeTime) {
    return `${date.getMonth() + 1}${dateDelimiter}${date.getDate()}${dateDelimiter}${date.getFullYear()}`;
  }

  return `${date.getMonth() + 1}${dateDelimiter}${date.getDate()}${dateDelimiter}${date.getFullYear()} - ${hours}:${fullMinutes}:${fullSeconds} ${ampm}`;
};

Tests:

js date
window.formatDate(new Date(window.ds), true);
luxon date
luxon.DateTime.fromJSDate(new Date(window.ds)).toFormat("mm/dd/yyyy - h:mm:ss a");

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
js date
luxon date

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Browser/OS: Chrome 123 on Mac OS X 10.15.7

View result in a separate tab

js date

2.4M/s

luxon date

479K/s

View exact numbers

Test name	Executions per second
✓ js date	2,440,926 Ops/sec
luxon date	479,254 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net.

The provided JSON represents a benchmark test case that compares two different approaches to format dates in JavaScript: using the `Date` object and the Luxon library.

**Script Preparation Code:**

The script preparation code defines a custom function `formatDate` that takes a date string, includes time, and returns a formatted string. The function uses template literals to construct the output string, which makes it easy to read and maintain. However, this approach can be slower than using a library like Luxon.

**Html Preparation Code:**

The HTML preparation code includes a script tag that loads the Luxon library, version 3.4.4. Luxon is a popular JavaScript date and time library that provides a robust set of features for working with dates, including formatting.

**Benchmark Definition:**

There are two benchmark test cases:

1. **js date**: This test case measures the execution speed of the custom `formatDate` function using the `Date` object.
2. **luxon date**: This test case measures the execution speed of Luxon's `DateTime.fromJSDate()` method to format a date string.

**Options Compared:**

The two options being compared are:

* Using the `Date` object to format dates (js date)
* Using Luxon's `DateTime.fromJSDate()` method to format dates (luxon date)

**Pros and Cons of Each Approach:**

* **Using the Date object:**
	+ Pros:
		- Easy to implement and understand
		- Works in most browsers
	- Cons:
		- Can be slower than using a library like Luxon
		- Requires more manual processing of date components (e.g., hours, minutes, seconds)
* **Luxon:**
	+ Pros:
		- Faster execution speed due to optimized algorithms and caching
		- Provides a robust set of features for working with dates, including formatting
		- Easy to use and understand, especially for complex date calculations
	- Cons:
		- Requires loading an additional library (Luxon)
		- May have slower startup times compared to native `Date` object usage

**Other Considerations:**

* **Performance:** Luxon is generally faster than using the `Date` object due to its optimized algorithms and caching.
* **Readability:** Both approaches are easy to read and maintain, but Luxon's API is more concise and expressive, making it a better choice for complex date calculations.
* **Browser Support:** Both approaches work in most browsers, but Luxon may have additional browser-specific optimizations.

**Special JS Feature or Syntax:**

There are no special JavaScript features or syntax used in this benchmark. The custom `formatDate` function uses template literals, which is a standard feature of modern JavaScript.

In summary, the MeasureThat.net benchmark test case compares two approaches to formatting dates in JavaScript: using the `Date` object and Luxon. While both approaches have their pros and cons, Luxon's optimized algorithms and caching make it generally faster and more efficient for complex date calculations.

luxon3-vs-date-format-fromJSDate (version: 2)

Comparing performance of: `js date vs luxon date`

Created: 2 years ago by: Registered User

Go to the latest result

js date

luxon date

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

luxon3-vs-date-format-fromJSDate (version: 2)

Comparing performance of: js date vs luxon date

Created: 2 years ago by: Registered User

Go to the latest result

js date

luxon date

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

Related benchmarks

Comparing performance of: `js date vs luxon date`