Benchmark: Moment Dayjs comparison by me

HTML Preparation code:

<script src="https://unpkg.com/dayjs@1.11.10/dayjs.min.js"></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.30.1/moment.min.js'></script>

Script Preparation code:

window.ds = "2024-02-02 23:01:95";

Tests:

Moment
moment(window.ds, "HH:MM:SS DD.MM.YYYY").format("HH:MM:SS")
Dayjs
dayjs(window.ds, "DD-MM-YYYY HH:mm:ss").format("HH:mm:ss")

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Moment
Dayjs

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 OPR/105.0.0.0

Browser/OS: Opera 105 on Windows

View result in a separate tab

Test name	Executions per second
Moment	113744.9 Ops/sec
Dayjs	220435.4 Ops/sec

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

LLMs can make mistakes. Check important info.

I'd be happy to explain the benchmark and its options.

**Benchmark Overview**

The benchmark is designed to compare the performance of two popular date and time libraries: Moment.js and Dayjs. The test cases are focused on formatting dates in different formats, which is a common use case for these libraries.

**Script Preparation Code**

The script preparation code sets up the `window.ds` variable with a sample date string in the format "HH:MM:SS DD.MM.YYYY". This date string will be used as input for the benchmark.

**Html Preparation Code**

The HTML preparation code includes links to the Moment.js and Dayjs libraries, which are then loaded by the browser. These libraries provide the functionality that is being tested in the benchmark.

**Test Cases**

There are two test cases:

1. **Moment**
The benchmark definition uses Moment.js to format the date string using the `moment()` function with the specified format. The resulting formatted date string is then extracted and returned.
2. **Dayjs**
The benchmark definition uses Dayjs to format the date string using the `dayjs()` function with the specified format. The resulting formatted date string is then extracted and returned.

**Options Compared**

In this benchmark, two main options are being compared:

1. **Moment.js**: Moment.js is a widely used JavaScript library for working with dates and times. It provides a range of features, including formatting, parsing, and manipulation.
2. **Dayjs**: Dayjs is a lightweight alternative to Moment.js that provides similar functionality. However, it has some differences in its implementation and behavior.

**Pros and Cons**

Here are some pros and cons for each library:

* **Moment.js**:
	+ Pros: Widely used and well-established, with a large community of developers who contribute to its development.
	+ Cons: Can be slower than Dayjs due to its more complex implementation and additional features.
* **Dayjs**:
	+ Pros: Lightweight and fast, making it suitable for high-performance applications.
	+ Cons: Smaller community compared to Moment.js, which may limit the availability of resources and support.

**Library Purpose**

Both libraries are designed to provide a convenient way to work with dates and times in JavaScript. They offer features such as:

* Formatting dates in different formats (e.g., "YYYY-MM-DD" vs. "HH:mm:ss")
* Parsing date strings into JavaScript Date objects
* Manipulating dates (e.g., adding or subtracting days, months, etc.)
* Providing a range of utility functions for working with dates

**Special JS Features**

There are no special JavaScript features being used in this benchmark that would require additional explanation. The focus is on comparing the performance of two libraries in formatting dates.

**Other Alternatives**

If you're interested in exploring other date and time libraries, some alternatives to Moment.js and Dayjs include:

* **Lux**: A modern JavaScript library for working with dates and times.
* **Date-fns**: A lightweight JavaScript library for working with dates and times.
* **Ms**: A small JavaScript library for working with milliseconds.

I hope this explanation helps!

Related benchmarks:

Moment Dayjs comparison by me (version: 0)

Comparing performance of: Moment vs Dayjs

Created: 2 years ago by: Registered User

Jump to the latest result

Moment

Dayjs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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