Benchmark: Date Comparison 20230620

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/gh/moment/moment@2.24.0/moment.js"></script>

Tests:

Moment Symbol
moment("2023-06-30T04:00:00") > moment()
Moment isAfter
moment("2023-06-30T04:00:00").isAfter(moment())
Date Symbol
Date.parse("2023-06-30T04:00:00") > Date.now()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Moment Symbol
Moment isAfter
Date Symbol

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

I'll break down the provided benchmark and its test cases to explain what's being tested, compared, and their pros and cons.

**Benchmark Overview**

MeasureThat.net is a website that allows users to create and run JavaScript microbenchmarks. The provided benchmark definition json represents three individual test cases: "Date Comparison 20230620". This benchmark measures the performance of different date-related functions in JavaScript across various browsers.

**Options Compared**

The test cases compare the performance of three different approaches:

1. **Moment.js**: A popular JavaScript library for working with dates and times.
2. **JavaScript built-in `Date` object**: The native JavaScript object for representing dates and times.
3. **JavaScript built-in `Date.parse()` function**: A function that parses a string representation of a date into a numeric timestamp.

**Pros and Cons**

1. **Moment.js**:
	* Pros: High-performance, easy to use, supports various date formats.
	* Cons: Requires an additional library download, may have slower startup times due to its dependency on the DOM.
2. **JavaScript built-in `Date` object**:
	* Pros: Built-in, no additional dependencies, good performance for simple date operations.
	* Cons: May be slower for more complex date calculations or when dealing with older browsers that don't support modern date formatting options.
3. **JavaScript built-in `Date.parse()` function**:
	* Pros: Lightweight and fast, suitable for simple date parsing.
	* Cons: May have issues with parsing certain date formats or may not work correctly in older browsers.

**Library Used**

The test case "Moment Symbol" uses the Moment.js library. Moment.js is a popular JavaScript library for working with dates and times. It provides an easy-to-use API for formatting, parsing, and manipulating dates and times.

In this specific test case, the `moment()` function from Moment.js is used to create a new moment object representing the date "2023-06-30T04:00:00". The comparison is then made with another moment object created using the same method (`moment()`), which represents the current moment.

**Special JS Feature/Syntax**

The test case "Moment Symbol" uses Moment.js's syntax for creating moment objects, which is a specific feature of the library. It allows developers to easily create moment objects from string representations of dates in various formats.

In contrast, the other two test cases ("Moment isAfter" and "Date Symbol") do not use any special JavaScript features or syntax beyond what is commonly available in modern browsers.

**Other Alternatives**

If you were to consider alternative approaches to this benchmark, some options could include:

* Using a different date library, such as Luxon or DayPilot.
* Implementing custom date parsing and formatting logic using only the built-in `Date` object and JavaScript regular expressions.
* Measuring performance with a focus on specific use cases, such as internationalization or timezone support.

However, it's essential to note that these alternatives might not provide accurate comparisons if they introduce significant changes in implementation details or assumptions about the target browser environment.

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/114.0

Browser/OS: Firefox 114 on Windows

View result in a separate tab

Test name	Executions per second
Moment Symbol	69918.6 Ops/sec
Moment isAfter	76391.4 Ops/sec
Date Symbol	2365591.2 Ops/sec

Related benchmarks:

Date Comparison 20230620 (version: 0)

Comparing performance of: Moment Symbol vs Moment isAfter vs Date Symbol

Created: one year ago by: Guest

Jump to the latest result

Moment Symbol

Moment isAfter

Date Symbol

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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