Benchmark: Moment VS Date3 - MeasureThat.net

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.22.0/moment.min.js'></script>

Script Preparation code:

var dates = [];
var dt = '2019-04-22';

for(let i=0; i<100; i++){
  	let dm = moment(dt);
  
	dates.push(dm.add(1,'day').format('YYYY-MM-DD'));
}

let format = "YYYY-MM-DD HH:mm:ss";
const formatMap = {
  YYYY: 0,
  MM: 1,
  DD: 2,
  HH: 3,
  mm: 4,
  ss: 5
};
let formatTokens = [];

const getFormatTokens = (f, excludeChar = true) => {
  let str = "";
  const arr = f.split("");
  const result = [];

  arr.forEach(a => {
    if (a.match(/[A-Za-z]/)) {
      str += a;
    } else {
      result.push(str);

      if (!excludeChar) {
        result.push(a);
      }

      str = "";
    }
  });

  result.push(str);

  return result;
};

const configureFormat = f => {
  format = f;

  formatTokens = getFormatTokens(f);
};

configureFormat("YYYY-MM-DD HH:mm:ss");

const getDateTokens = d => {
  let str = "";
  const arr = d.split("");
  const result = new Array(formatTokens.length).fill(null);
  let counter = 0;

  arr.forEach(a => {
    if (!isNaN(parseInt(a))) {
      str += a;
    } else {
      if (str) {
        result[formatMap[formatTokens[counter]]] = str;
        str = "";
        counter++;
      } else {
        return;
      }
    }
  });

  if (str) {
    result[formatMap[formatTokens[counter]]] = str;
  }

  result[1] = result[1] - 1;

  return result;
};

const getDate = d => {
  return new Date(...getDateTokens(d));
};

const padStr = val => {
  return val < 10 ? "0" + val : val;
};



function getNativeDate(str) {
    const d = getDate(str);
    return `${d.getFullYear()}-${padStr(d.getMonth() + 1)}-${d.getDate()} ${padStr(d.getHours())}:${padStr(d.getMinutes())}:${padStr(d.getSeconds())}`;
}

function getMomentDate(str) {
	return moment(str).format('YYYY-MM-DD HH:mm:ss');
}

Tests:

moment
dates.map(val => getMomentDate(val));
Date
dates.map(val => getNativeDate(val));

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
moment
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):

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I'll provide an explanation of the benchmark and its components.

**Benchmark Overview**

The provided JSON represents a JavaScript microbenchmark on comparing two date formatting libraries: Moment.js and Date3 (also known as `getNativeDate` function). The test case involves creating an array of dates, mapping over it to apply date formatting using both libraries, and measuring the execution time for each approach.

**Options Compared**

The benchmark compares two options:

1. **Moment.js**: A popular JavaScript library for working with dates.
2. **Custom Date3 (getNativeDate) function**: A custom implementation of date formatting using a `getNativeDate` function.

**Pros and Cons of Each Approach**

### Moment.js

Pros:

* Mature and widely adopted library
* Robust set of features, including formatting and parsing
* Well-documented and maintained

Cons:

* Adds overhead due to the library's dependencies and initialization
* May not be as lightweight as custom implementations

### Custom Date3 (getNativeDate) function

Pros:

* Lightweight and compact implementation
* No additional dependencies or overhead
* Can be highly optimized for specific use cases

Cons:

* Requires manual management of formatting logic
* Less maintainable and less robust than a dedicated library like Moment.js

**Library: Moment.js**

Moment.js is a JavaScript library for working with dates. Its primary purpose is to provide a robust and flexible set of date-related functions, including formatting and parsing. In this benchmark, Moment.js is used for its `format` method to apply the desired format to each date in the array.

**Special JS Feature/ Syntax: None**

There are no special JavaScript features or syntaxes being utilized in this benchmark beyond standard JavaScript concepts.

**Other Considerations**

When choosing between these two approaches, consider the trade-offs:

* If you require a robust set of features and are willing to add some overhead, Moment.js is a good choice.
* If you need a lightweight implementation with no additional dependencies, the custom Date3 function might be more suitable.

**Alternatives**

If you're interested in exploring other date formatting libraries or implementations, consider:

1. **Date-fns**: A modern and efficient JavaScript library for working with dates.
2. **Luxon**: A powerful and flexible date and time library.
3. **Moment-timezone**: An extension of Moment.js that adds support for timezone-aware dates.

These alternatives offer varying degrees of complexity, feature sets, and performance characteristics compared to the custom Date3 function and Moment.js used in this benchmark.

Related benchmarks:

Moment VS Date3 (version: 6)

Comparing performance of: moment vs Date

Created: 6 years ago by: Registered User

Jump to the latest result

moment

Date

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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