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Date serialization+parsing of strings vs. numbers
(version: 0)
Compares the speed of serializing dates to ISO strings and parsing them vs. serializing them to numbers and parsing them.
Comparing performance of:
ISO strings vs UNIX times
Created:
6 years ago
by:
Guest
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Tests:
ISO strings
const now = new Date(); const serialized = now.toISOString(); const parsed = new Date(serialized);
UNIX times
const now = new Date(); const serialized = now.getTime(); const parsed = new Date(serialized);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
ISO strings
UNIX times
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
**Benchmark Overview** MeasureThat.net is a website that allows users to create and run JavaScript microbenchmarks, comparing the performance of different approaches to achieve specific goals. **Test Case 1: ISO Strings vs. UNIX Times** In this test case, two approaches are compared: 1. **ISO strings**: The code serializes a Date object to an ISO string using `toISOString()`, and then parses it back to a Date object. 2. **UNIX times**: The code serializes a Date object to the UNIX time (a numeric representation of the number of milliseconds since January 1, 1970) using `getTime()`, and then parses it back to a Date object. **Pros and Cons** * **ISO strings**: * Pros: Human-readable format, easy to work with dates in JSON or other data formats. * Cons: Performance might be slower due to the string conversion, especially for large amounts of data. This approach is more suitable when you need to store dates in a readable format. * **UNIX times**: * Pros: Faster performance since it only involves numeric conversions. * Cons: Less human-readable and less intuitive for working with dates. **Library Used** No specific library is used in this benchmark, but the `Date` object is a built-in JavaScript object that provides methods for working with dates. **Special JS Feature or Syntax** No special features or syntax are used in these test cases. They rely solely on standard JavaScript syntax and functionality. **Benchmark Preparation Code and HTML Preparation Code** Since there's no script preparation code or HTML preparation code provided, it's assumed that the benchmark is running without any additional setup required. **Other Alternatives** If you need to compare performance of other approaches for date serialization and parsing, some alternatives might include: 1. **Moment.js**: A popular JavaScript library for working with dates. 2. **Date-fns**: Another widely used JavaScript library for date manipulation and formatting. 3. **Intl.DateTimeFormat**: An API provided by modern browsers for formatting dates in a human-readable format. These libraries can provide different approaches to serializing and parsing dates, each with their own pros and cons. For example, Moment.js provides a wide range of date formats that can be easily used for internationalization, while Date-fns offers an efficient way to manipulate dates. In conclusion, the MeasureThat.net benchmark provides a simple yet insightful comparison between two approaches to serializing and parsing dates in JavaScript: ISO strings versus UNIX times. Understanding these differences is essential for optimizing performance-critical code involving date manipulation.
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Date.parse vs new Date with ISO 8601 format
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