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Dayjs Date-fns format comparison25151dd
(version: 0)
Comparing performance of:
Date-fns vs Dayjs
Created:
2 years ago
by:
Guest
Jump to the latest result
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 Preparation code:
window.ds = "2020-02-19T00:51:53.623839+00:00";
Tests:
Date-fns
dayjs().format("ss")
Dayjs
dayjs().get("seconds")
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
Date-fns
Dayjs
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/121.0.0.0 Safari/537.36
Browser/OS:
Chrome 121 on Mac OS X 10.15.7
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Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=504497" width="100%" height="500px"></iframe>
Test name
Executions per second
Date-fns
722130.3 Ops/sec
Dayjs
3916819.0 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'll break down the provided benchmark JSON and explain what's being tested, compared, and the pros/cons of each approach. **Benchmark Definition JSON** The benchmark definition consists of two test cases: 1. `dayjs().format("ss")` - This tests the `format()` method of the Day.js library, which is used to format dates in a specific way. 2. `dayjs().get("seconds")` - This tests the `get()` method of the Day.js library, which is used to extract specific parts of a date. **Library and Purpose** * **Day.js**: A lightweight JavaScript library for working with dates and times. It provides methods like `format()`, `get()`, and others to perform various date-related operations. * **Date-fns**: A popular JavaScript library for working with dates and times, providing similar functionality to Day.js. **Options Compared** The benchmark compares the performance of two libraries: Day.js and Date-fns. Specifically: 1. `format()` vs. `get()`: Both methods are used to extract or format date values, but they have different approaches: * `Day.js format()` takes a string template as an argument, which is then replaced with the formatted date value. * `Date-fns get()` takes a string key (like "seconds") and returns the corresponding value from the date object. 2. Native JavaScript vs. Library Functions: The benchmark also compares the performance of native JavaScript methods (`get()`) against library functions (`format()`, `get()`). **Pros and Cons** * **Native JavaScript` get()`**: Pros: + Fastest execution time + No dependency on a library or additional code * Cons: + Limited functionality compared to library methods + May not provide the same level of formatting options as library functions * `Day.js format()` and `Date-fns get()`: Pros: + More flexible formatting options with template strings (Day.js) or string keys (Date-fns) + Can handle more complex date calculations * Cons: + Slower execution times compared to native JavaScript `get()` + May require additional code or dependency on a library **Other Considerations** * **Browser Support**: Both libraries are widely supported by modern browsers, but Day.js has better support for older browsers. * **Code Size and Complexity**: Library functions can add complexity and increase code size, which may impact performance. Native JavaScript methods are often more concise and efficient. * **Maintainability and Updates**: Libraries require updates and maintenance, which can lead to version conflicts or security issues if not managed properly. **Alternatives** If you prefer native JavaScript for date-related operations: 1. Use the `Date` object directly (e.g., `new Date().getSeconds()`). 2. Employ utility functions like `Date.prototype.toISOString()`, `Date.prototype.getTime()`, etc. For more advanced date calculations and formatting, consider using: 1. Moment.js: A popular JavaScript library for working with dates and times. 2. Luxon: Another lightweight JavaScript library for date and time manipulation. Ultimately, the choice between native JavaScript methods, Day.js, Date-fns, or other libraries depends on your specific use case, performance requirements, and personal preference.
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