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Date.parse vs custom
(version: 0)
Comparing performance of:
Date.parse vs custom
Created:
8 years ago
by:
Guest
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HTML Preparation code:
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>
Script Preparation code:
var dateString = '2000-01-25'; function parseDate(str) { const dateValues = str.split('-').map(_.parseInt); return new Date(dateValues[0], dateValues[1] - 1, dateValues[2]); }
Tests:
Date.parse
var parsedDate = Date.parse(dateString);
custom
var parsedDate = parseDate(dateString);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Date.parse
custom
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the benchmark and explain what is being tested. **Overview** The benchmark compares two approaches for parsing dates: using the `Date.parse()` method provided by JavaScript's built-in `Date` object, and implementing a custom parser using a library (Lodash). **Options Compared** Two options are compared: 1. **Date.parse()**: This is the built-in method in JavaScript that attempts to parse a string into a Date object. 2. **Custom Parser**: This approach uses a custom function (`parseDate`) implemented using Lodash's `map` and `parseInt` functions. **Pros and Cons** **Date.parse():** Pros: * Easy to use and implement * Built-in method, so no additional libraries are required Cons: * May not handle all date formats correctly (e.g., ambiguous dates) * Can be slower than a custom parser in some cases **Custom Parser:** Pros: * More flexible and customizable for specific date formats * Can be faster than `Date.parse()` for certain inputs Cons: * Requires an additional library (Lodash) to be included * More complex implementation compared to `Date.parse()` **Lodash Library** The custom parser uses Lodash's `map` function to split the date string into its components, and then applies `parseInt` to each component. The resulting values are then used to create a new Date object. **Special JS Features or Syntax** This benchmark does not use any special JavaScript features or syntax that would require additional explanation. **Other Alternatives** If you were to implement a custom parser similar to the one in this benchmark, you could consider using other libraries like: * Moment.js: A popular date and time library that provides more advanced features than Lodash's `parseDate` function. * Date-fns: A lightweight library for working with dates in JavaScript. However, it's worth noting that implementing a custom parser can be complex and may not always outperform the built-in `Date.parse()` method.
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