Benchmark: moment (2.11.2) valueOf vs new Date().getTime() with a specific date constructor

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.11.2/moment.min.js"></script>

Tests:

moment().valueOf()
return moment('2022-07-29T04:38:22.641Z').valueOf()
new Date().getTime()
return new Date('2022-07-29T04:38:22.641Z').getTime()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
moment().valueOf()
new Date().getTime()

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36

Browser/OS: Chrome 134 on Windows

View result in a separate tab

Test name	Executions per second
moment().valueOf()	183657.3 Ops/sec
new Date().getTime()	3109842.2 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

LLMs can make mistakes. Check important info.

Let's break down the provided JSON data and explain what's being tested.

**Benchmark Definition**

The benchmark is comparing the performance of two approaches: `moment().valueOf()` vs `new Date('2022-07-29T04:38:22.641Z').getTime()`. The test case uses the Moment.js library, which is a popular JavaScript date library.

**Moment.js Library**

Moment.js is a library that provides a simple and elegant way to work with dates in JavaScript. It offers various methods for parsing, manipulating, and formatting dates. In this benchmark, we're focusing on two specific methods:

1. `moment().valueOf()`: This method returns the value of the moment object as an integer, representing the number of milliseconds since the Unix epoch (January 1, 1970).
2. `new Date('2022-07-29T04:38:22.641Z').getTime()`: This method creates a new `Date` object from a specific date string and returns its value as an integer, representing the number of milliseconds since the Unix epoch.

**Comparison**

The benchmark is comparing the performance of these two approaches on a specific date string (`2022-07-29T04:38:22.641Z`). The test case uses a fixed date constructor to ensure consistent results across executions.

**Pros and Cons**

Here's a brief analysis of the pros and cons of each approach:

1. `moment().valueOf()`:
	* Pros:
		+ More readable and concise code
		+ Less error-prone, as Moment.js handles parsing and formatting for you
	* Cons:
		+ May be slower due to additional overhead from the library
2. `new Date('2022-07-29T04:38:22.641Z').getTime()`:
	* Pros:
		+ Faster execution time, as it uses native JavaScript functionality
	* Cons:
		+ More verbose and error-prone code

**Other Considerations**

When choosing between these approaches, consider the trade-off between readability and performance. If speed is crucial, using `new Date('...').getTime()` might be a better option. However, if readability and maintainability are more important, using `moment().valueOf()` could be a better choice.

**Alternative Approaches**

Other alternatives to compare might include:

1. Using the `Date.parse()` method instead of `new Date()`.
2. Comparing the performance of different date formats (e.g., ISO 8601 vs RFC 2822).
3. Incorporating additional error handling or edge cases.
4. Using a different JavaScript engine or browser to compare results.

In summary, the benchmark is comparing two approaches for working with dates in JavaScript: `moment().valueOf()` vs `new Date('...').getTime()`. While both methods have their pros and cons, choosing the right approach depends on the specific requirements of your project (readability vs performance).

Related benchmarks:

moment (2.11.2) valueOf vs new Date().getTime() with a specific date constructor (version: 0)

Comparing performance of: moment().valueOf() vs new Date().getTime() with a specific date constructor

Comparing performance of: moment().valueOf() vs new Date().getTime()

Created: 3 years ago by: Guest

Jump to the latest result

moment().valueOf()

new Date().getTime()

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):