Benchmark: Moment.unix vs moment

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.19.3/moment.min.js'></script>

Script Preparation code:

var string = "2020-05-16T07:00:00Z";
var unix = 1589612400;

Tests:

string parse
return moment(string);
epoch parse
return moment.unix(unix);

Historical Performance Data aggregated from 5 community runs

Desktop Results:

Chrome 5 runs

epoch parse

3.3M/s

string parse

275K/s

Fastest: epoch parse (12.1x faster)

View exact numbers

✓ epoch parse: 3,321,027 ops/sec
• string parse: 274,960 ops/sec

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
string parse
epoch parse

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/137.0.0.0 Safari/537.36

Browser/OS: Chrome 137 on Windows

View result in a separate tab

epoch parse

2.4M/s

string parse

110K/s

View exact numbers

Test name	Executions per second
✓ epoch parse	2,369,331 Ops/sec
string parse	109,795 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.

**Overview**

MeasureThat.net is a website where users can create and run JavaScript microbenchmarks to compare the performance of different approaches. In this case, we're testing two methods for parsing dates using the `moment` library: Unix time (`moment.unix(unix)`) and string format (`moment(string)`).

**Options being compared**

The main options being compared are:

1. **Unix Time Parsing**: Using `moment.unix(unix)` to parse a date from a Unix timestamp.
2. **String Format Parsing**: Using `moment(string)` to parse a date from a string in the ISO 8601 format (`2020-05-16T07:00:00Z`).

**Pros and Cons**

* **Unix Time Parsing**:
	+ Pros: Fast and efficient, as Unix timestamps are typically numerical values that can be processed quickly.
	+ Cons: Requires an additional step to convert the Unix timestamp to a human-readable date string, which might add overhead.
* **String Format Parsing**:
	+ Pros: Can parse dates in various formats, including ISO 8601, and often provides more accurate results due to built-in formatting rules.
	+ Cons: May be slower than Unix time parsing, as it involves parsing the date string and then converting it to a numerical value.

**Library and Purpose**

The `moment` library is a popular JavaScript date manipulation and parsing library. Its primary purpose is to provide an easy-to-use interface for working with dates in various formats. The library includes functions like `unix()` for parsing Unix timestamps, as well as various formatting options for converting dates between different formats.

**Other Considerations**

When testing these two approaches, it's essential to consider the following:

* **Browser-specific issues**: Different browsers might have varying levels of support for the `moment` library or may exhibit specific behavior when using it.
* **Date formatting rules**: The ISO 8601 format used in this benchmark is a widely accepted standard, but other formats (like `YYYY-MM-DD`) might be more common in certain industries or regions.

**Special JS Features and Syntax**

There are no special JavaScript features or syntax mentioned in the provided data. However, if you're interested in exploring these aspects further, some notable examples include:

* **Arrow functions**: Introduced in ECMAScript 2015 (ES6), arrow functions provide a concise way to define small functions.
* **Template literals**: Also introduced in ES6, template literals allow for more readable string interpolation.

**Alternatives**

If you're looking for alternative libraries or approaches for parsing dates, some options include:

* **Date-FNS**: A small library that provides a set of fast and efficient date-related functions, including parsing Unix timestamps.
* **Luxon**: A modern JavaScript date and time library that offers more advanced features than `moment`, such as support for multiple time zones.

Keep in mind that the choice of library or approach ultimately depends on your specific requirements, performance constraints, and personal preferences.

Moment.unix vs moment (version: 0) Benchmark.js

Comparing performance of: `string parse vs epoch parse`

Created: 6 years ago by: Guest

Go to the latest result

string parse

epoch parse

Historical Performance Data aggregated from 5 community runs

Desktop Results:

Chrome 5 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

Moment.unix vs moment (version: 0) Benchmark.js

Comparing performance of: string parse vs epoch parse

Created: 6 years ago by: Guest

Go to the latest result

string parse

epoch parse

Historical Performance Data aggregated from 5 community runs

Desktop Results:

Chrome 5 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

Related benchmarks

Comparing performance of: `string parse vs epoch parse`