Benchmark: Moment Dayjs Date-fns date format benchmark

HTML Preparation code:

<script src="https://unpkg.com/dayjs@1.8.21/dayjs.min.js"></script>
<script src="https://igor.moomers.org/random/datefns.js"></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.22.0/moment.min.js'></script>

Script Preparation code:

window.dsStart = "2020-02-19T00:51:53.623839+00:00";
window.dsEnd = "2020-02-19T01:23:10.283748+00:00";

Tests:

date
var from = new Date(dsStart) var to = new Date(dsEnd) var res = from.getTime()-to.getTime()
Momentjs
var from = moment(dsStart) var to = moment(dsEnd) var res = from.diff(to, 'seconds')
Dayjs
var from = moment(dsStart) var to = moment(dsEnd) var res = from.diff(to, 'seconds')

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
date
Momentjs
Dayjs

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/129.0.0.0 Safari/537.36

Browser/OS: Chrome 129 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
date	1951549.2 Ops/sec
Momentjs	108381.8 Ops/sec
Dayjs	108156.0 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 and explore what's being tested in this specific benchmark.

**Benchmark Overview**

The benchmark is designed to compare the performance of three date formatting libraries: Moment.js, Day.js, and Date-fns. The test case involves creating two dates from a predefined start and end time using each library, and then calculating the difference between these two dates in seconds.

**Options Compared**

The options being compared are:

1. **Moment.js**: A popular JavaScript library for working with dates.
2. **Day.js**: A modern alternative to Moment.js, designed to be faster and more efficient.
3. **Date-fns**: A small, lightweight library that provides utility functions for working with dates.

**Pros and Cons of Each Approach**

1. **Moment.js**:
	* Pros: Well-established library with a large community, extensive feature set, and good documentation.
	* Cons: Can be slow due to its complex internal workings, may have performance issues with very large date ranges.
2. **Day.js**:
	* Pros: Designed for speed and efficiency, uses a simpler approach to calculating dates, which can lead to better performance.
	* Cons: Smaller community compared to Moment.js, fewer features available out of the box.
3. **Date-fns**:
	* Pros: Extremely lightweight and fast, easy to use and understand, suitable for simple date-related tasks.
	* Cons: Limited feature set compared to Moment.js, may not be suitable for complex date calculations.

**Library Usage**

The test case uses the following libraries:

1. **Moment.js**: Used in two test cases (`Momentjs` and `Dayjs`) with slight variations.
2. **Day.js**: Used in its own test case (`Dayjs`).
3. **Date-fns**: Not used directly in any of the test cases, but its date formatting functions are available through the included HTML scripts.

**Special JS Features or Syntax**

There doesn't appear to be any special JavaScript features or syntax being used in this benchmark. The focus is on comparing the performance of different libraries for simple date calculations.

**Other Alternatives**

If you're looking for alternative libraries for working with dates, some other options include:

1. **Luxon**: A modern, lightweight library that provides a wide range of date and time functions.
2. **JSDate**: A small, fast library that provides basic date-related functionality.
3. **date-fns**: As mentioned earlier, this is a lightweight library that provides utility functions for working with dates.

These alternatives may offer better performance or additional features compared to the libraries being tested in this benchmark.

Related benchmarks:

Moment Dayjs Date-fns date format benchmark (version: 0)

Moment Dayjs Date-fns format benchmark

Comparing performance of: date vs Momentjs vs Dayjs

Created: one year ago by: Guest

Jump to the latest result

date

Momentjs

Dayjs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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