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moment with & without formats, vs moment new Date & moment date.parse
(version: 0)
Comparing performance of:
moment with format vs moment without format vs Date.parse vs new Date
Created:
3 years ago
by:
Guest
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HTML Preparation code:
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.17.1/moment.js"></script>
Tests:
moment with format
return moment("2016-12-24T09:00:00Z", "YYYY-MM-DDTHH:mm:ssZ")
moment without format
return moment("2016-12-24T09:00:00Z")
Date.parse
return moment(Date.parse("2016-12-24T09:00:00Z"));
new Date
return moment(new Date("2016-12-24T09:00:00Z"));
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (4)
Previous results
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Test case name
Result
moment with format
moment without format
Date.parse
new Date
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
**Overview** The provided JSON represents a JavaScript benchmark test case on MeasureThat.net. The test compares the execution performance of four different approaches: 1. `new Date()` and `moment(new Date())` 2. `Date.parse()` and `moment(Date.parse())` The test measures how long it takes to execute these functions in each scenario. **Approaches** 1. **`new Date()` and `moment(new Date())`**: This approach involves creating a new `Date` object using the `new Date()` constructor, passing an ISO-formatted string (`"2016-12-24T09:00:00Z"`). The resulting date is then passed to the `moment()` function for parsing. Pros: Simple and straightforward way to create a date object. Cons: May incur additional overhead due to string parsing and formatting, especially if the input string is large or malformed. 2. **`Date.parse()` and `moment(Date.parse())`**: This approach involves using the `Date.parse()` method to parse an ISO-formatted string directly into a `Date` object. The resulting date can then be passed to the `moment()` function for parsing. Pros: More efficient than creating a new `Date` object from scratch, as it leverages the optimized parsing implementation. Cons: May require careful handling of input errors and edge cases. 3. **`moment with format`**: This approach involves passing an ISO-formatted string to the `moment()` function without specifying a format. Pros: Simplifies the benchmarking process by removing the need for explicit formatting. Cons: May incur additional overhead due to automatic format detection, which can be less efficient than using a specific format. 4. **`moment without format`**: This approach involves passing an ISO-formatted string to the `moment()` function without specifying a format, similar to the previous approach. Pros: Similar benefits as before. Cons: May incur additional overhead due to automatic format detection. **Libraries and Features** * `moment.js`: A popular JavaScript library for working with dates and times. It provides various formatting options, parsing capabilities, and other features like timezone handling. In this benchmark, the `moment()` function is used to parse ISO-formatted strings into date objects. The `new Date()` constructor is used to create date objects from scratch, while `Date.parse()` is used for parsing dates directly from strings. **Other Considerations** When evaluating these approaches, it's essential to consider factors like: * **Input validation**: How well each approach handles malformed or invalid input data? * **Performance overhead**: What are the performance implications of using each approach, especially for large or complex inputs? * **Code simplicity and readability**: How easy is it to write code that uses each approach? **Alternatives** Other alternatives for working with dates and times in JavaScript include: * `Date`: The built-in JavaScript `Date` object, which provides a simple way to work with dates. * `Intl.DateTimeFormat`: An API for formatting dates according to the user's locale. * **ES6 date classes**: New features introduced in ECMAScript 2015 (ES6) that provide improved support for working with dates and times. These alternatives may offer advantages or disadvantages compared to using the `moment()` library.
Related benchmarks:
Date vs Moment Formatt
Moment toDate vs new Date
MomentJS vs Native Date
Moment vs Date.parse
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