Benchmark: ISO 8601 parsing

HTML Preparation code:

<script src="https://igor.moomers.org/random/datefns.js"></script>

Script Preparation code:

var dates = ['2021-10-29T09:36:00.07', '2021-11-03T14:30:11.874', '2022-05-18T22:42:40.756', '2021-10-29T14:01:17.107', '2021-10-29T10:14:02.68', '2021-10-30T23:04:23.144', '2021-10-29T13:27:28.951', '2023-04-25T09:22:07.921944', '2021-11-03T15:13:51.199', '2021-11-03T14:47:36.602', '2021-11-04T12:01:40.729', '2021-11-04T12:09:32.167', '2021-11-04T10:50:21.868', '2021-11-04T10:57:50.183', '2022-03-29T12:40:57.214', '2021-11-04T15:36:12.442', '2022-03-30T10:17:33.383', '2022-03-30T09:31:15.641', '2022-11-15T02:57:58.715235', '2022-03-30T10:58:23.598', '2022-03-30T09:23:34.762', '2022-02-21T12:14:53.972', '2022-03-30T09:39:48.142', '2022-03-30T10:11:03.492', '2022-03-30T10:45:58.47', '2022-10-17T18:05:51.704', '2021-11-05T11:02:37.653', '2022-11-15T06:40:15.577516', '2022-03-30T09:39:01.31', '2022-11-17T01:21:58.998845', '2022-03-30T10:16:22.764', '2022-11-16T08:13:28.987695', '2021-06-06T11:43:04.878', '2022-11-17T00:54:03.528504', '2022-03-30T09:15:10.52']

Tests:

date-fns
for (const d of dates) { window.datefns.parseISO(d.replace(/(?<date>[^Z])$/, '$1Z')) }
naive
for (const d of dates) { new Date(d.replace(/(?<date>[^Z])$/, '$1Z')) }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
date-fns
naive

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

This benchmark does not have any results yet. Be the first one to run it!

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

LLMs can make mistakes. Check important info.

Measuring performance is an essential part of software development, and benchmarks like MeasureThat.net help developers understand how different approaches impact their code's execution speed.

**Benchmark Description**

The provided JSON represents two benchmark definitions:

1. **ISO 8601 parsing**: This test measures the performance of parsing ISO 8601 dates in JavaScript. The script preparation code uses `date-fns` library to parse dates from a given array of strings.
2. **Naive approach**: This test measures the performance of parsing ISO 8601 dates using a naive approach, which is simply creating a new Date object with the date string.

**Options Compared**

The two benchmark definitions compare two approaches:

*   **Using `date-fns` library**: This approach uses the `date-fns` library to parse dates. The pros are that it's well-tested and optimized for performance. The cons are that it adds an external dependency.
*   **Naive approach**: This approach doesn't use any external libraries, which reduces dependencies but might introduce additional overhead due to the need for manual parsing logic.

**Pros and Cons**

*   **Using `date-fns` library**:
    *   Pros: Well-tested, optimized for performance, easy to maintain.
    *   Cons: Adds an external dependency.
*   **Naive approach**:
    *   Pros: No external dependencies, potentially easier to understand and maintain.
    *   Cons: Might introduce additional overhead due to manual parsing logic.

**Library**

The `date-fns` library is a popular JavaScript library for working with dates. It provides various functions for parsing, formatting, and manipulating dates. The `parseISO` function used in the benchmark definition takes a date string as input and returns a Date object.

**Special JS feature or syntax**

There are no special JS features or syntax used in this benchmark. However, it's worth noting that the use of `date-fns` library is an example of a JavaScript library, which is a common pattern in software development.

**Other Alternatives**

If you're looking for alternatives to `date-fns`, here are a few options:

*   **Moment.js**: A popular JavaScript library for working with dates.
*   **Luxon**: Another widely-used JavaScript library for working with dates and times.
*   **Simple Date Parsing**: If you prefer not to use external libraries, you can implement simple date parsing logic using regular expressions or string manipulation techniques.

Keep in mind that each approach has its pros and cons, and the choice ultimately depends on your specific needs and requirements.

Related benchmarks:

ISO 8601 parsing (version: 0)

Comparing performance of: date-fns vs naive

Created: 2 years ago by: Registered User

Jump to the latest result

date-fns

naive

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):