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moment vs own
(version: 0)
Comparing performance of:
mom vs own
Created:
6 years ago
by:
Guest
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HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.22.0/moment.min.js'></script>
Tests:
mom
const d = new Date(); moment().isBefore(d)
own
const d = new Date(); const seconds = 1000; const minutes = 60 * seconds; const hours = 60 * minutes; const days = 24 * hours; const granularities = { seconds, minutes, hours, days, }; function compare(first, second, granularity = 'seconds') { const accuracy = granularities[granularity].toString().length; const [a, b] = [first, second].map(date => (date instanceof Date ? date.getTime() : date).toString(), ); return ( +a.substring(0, a.length - accuracy) - +b.substring(0, b.length - accuracy) ); }; compare(new Date(), d) <= 0
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
mom
own
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'll break down the benchmark for you. **Benchmark Overview** The benchmark compares the performance of two JavaScript approaches to determine if a date is before another date in time: one using Moment.js, and the other implementing a custom comparison function. **Moment.js Library** Moment.js is a popular JavaScript library for working with dates and times. Its primary purpose is to provide a simple and intuitive way to perform date-related operations, such as formatting, parsing, and comparing dates. In this benchmark, Moment.js is used to create a new `Date` object and then call the `isBefore()` method on it, which takes another `Date` object as an argument. The performance of using Moment.js is compared against implementing a custom comparison function. **Custom Comparison Function** The custom comparison function compares two dates by subtracting their timestamps (converted to strings) up to a certain precision level, determined by the chosen granularity (seconds, minutes, hours, or days). Here are some pros and cons of this approach: Pros: * More control over the comparison process * Can be optimized for specific use cases Cons: * More verbose code * Requires manual handling of date parsing and formatting * Potential for errors if not implemented correctly **Performance Comparison** The benchmark tests the performance of both approaches on a single test case. The results show that the custom comparison function outperforms Moment.js in terms of executions per second. Here are some observations from the benchmark result: * Both tests were executed 639,010 times per second for the "own" test and 427,199 times per second for the "mom" test. * However, the custom comparison function is faster by a significant margin, indicating that Moment.js has some overhead or limitations in this specific use case. **Other Considerations** When deciding between using Moment.js or implementing a custom comparison function, consider the following factors: * Performance: If you need high performance and can optimize your code for specific use cases, the custom comparison function might be a better choice. However, if simplicity and ease of use are more important, Moment.js is still a good option. * Code readability: The custom comparison function requires more code and manual handling of date parsing, which might make it less readable than using Moment.js. * Maintenance: If you plan to modify the comparison logic in the future, implementing a custom comparison function might be more maintainable. **Alternatives** Other JavaScript libraries or approaches that can be used for date comparisons include: * JavaScript's built-in `Date` object methods (e.g., `getTime()`, `getUTCMilliseconds()`). * Lodash's `differenceInTime()` function. * Other custom implementations using various algorithms and techniques. However, these alternatives might not provide the same level of simplicity and convenience as Moment.js or the custom comparison function used in this benchmark.
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