Benchmark: ergert34vr2345v342revrdfv

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/dayjs/1.11.5/dayjs.min.js" integrity="sha512-Ot7ArUEhJDU0cwoBNNnWe487kjL5wAOsIYig8llY/l0P2TUFwgsAHVmrZMHsT8NGo+HwkjTJsNErS6QqIkBxDw==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/luxon/2.3.0/luxon.min.js" integrity="sha512-2j5fkjQ4q5ceXgfxi+kqrU2Oz234MrpyywZsQz1F5OGnfat7mOhjRr0oz5cpQ+YwwWB+hhDBSyxNGuL/tKWMFw==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/date-fns/1.30.1/date_fns.min.js" referrerpolicy="no-referrer"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js" integrity="sha512-qTXRIMyZIFb8iQcfjXWCO8+M5Tbc38Qi5WzdPOYZHIlZpzBHG3L3by84BBBOiRGiEb7KKtAOAs5qYdUiZiQNNQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>

Script Preparation code:

window.__date__ = new Date();
window.__luxon__ = luxon.DateTime.fromJSDate(__date__);
window.__moment__ = moment(__date__);
window.__dayjs__ = dayjs(__date__);

Tests:

datefns
dateFns.format(__date__, 'YYYY/MM/DD');
luxon
__luxon__.toFormat('yyyy/MM/dd');
moment
__moment__.format('YYYY/MM/DD');
dayjs
__dayjs__.format('YYYY/MM/DD');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
datefns
luxon
moment
dayjs

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

I'd be happy to help explain what's being tested in this benchmark.

**Overview**

The benchmark measures the performance of four different date formatting libraries: `dateFns`, `luxon`, `moment`, and `dayjs`. The tests are designed to format a single date string (`__date__`) using each library's `format()` method, with the desired output format being `'YYYY/MM/DD'`.

**Library Overview**

1. **dateFns**: A modern JavaScript date formatting library developed by @julienschmidt. It provides a simple and efficient way to format dates.
2. **luxon**: A powerful JavaScript date utility that offers advanced features for date and time calculations, including formatting. Developed by [Timeago.js](https://timeago.github.io/).
3. **moment**: A widely-used JavaScript date library developed by Scott Kossyfin. It provides a comprehensive set of features for working with dates.
4. **dayjs**: A lightweight and easy-to-use JavaScript date library that offers fast and accurate date formatting.

**Options Compared**

The benchmark compares the performance of each library in terms of the number of executions per second, measured using the `ExecutionsPerSecond` metric.

**Pros and Cons**

* **dateFns**: Pros: Simple, efficient, and easy to use. Cons: Not as widely adopted as other libraries.
* **luxon**: Pros: Powerful features for date calculations, fast formatting performance. Cons: Steeper learning curve due to its advanced features.
* **moment**: Pros: Widely adopted, comprehensive feature set, easy to learn. Cons: Can be slower than newer libraries like `dateFns` and `dayjs`.
* **dayjs**: Pros: Lightweight, easy to use, fast formatting performance. Cons: Less comprehensive feature set compared to other libraries.

**Special JS Feature**

The benchmark uses the `__date__` variable, which is initialized with a fictional date string using the `Date()` constructor. This allows the tests to focus solely on the date formatting functionality of each library without any external dependencies or configuration.

**Other Considerations**

* The benchmark assumes that the client browser supports modern JavaScript features, including ES6+ syntax and JavaScript modules.
* The performance results may vary depending on the specific use case and environment in which the libraries are used.

**Alternatives**

For those interested in exploring alternative date formatting libraries, some notable mentions include:

* **ms-date-formatters**: A lightweight JavaScript library that provides a simple way to format dates using various formats.
* **date-fns-clone**: A lightweight version of `dateFns` with fewer features and smaller size.

In summary, the benchmark measures the performance of four popular date formatting libraries in terms of executions per second. Each library has its pros and cons, and understanding these differences is essential for choosing the right library for specific use cases.

Related benchmarks:

ergert34vr2345v342revrdfv (version: 0)

Comparing performance of: datefns vs luxon vs moment vs dayjs

Created: 3 years ago by: Guest

Jump to the latest result

datefns

luxon

moment

dayjs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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