Pros of Moment

• More comprehensive feature set, including parsing, formatting, and manipulation of dates and times
• Extensive localization support for multiple languages and cultures
• Large community and ecosystem with numerous plugins and extensions

Cons of Moment

• Larger bundle size, which can impact performance in web applications
• Mutable API design, which can lead to unexpected side effects
• No longer actively maintained, with the maintainers recommending alternatives

Code Comparison

Moment:

moment().format('MMMM Do YYYY, h:mm:ss a');
moment().add(7, 'days');
moment('2010-10-20').isBefore('2010-10-21');

Fecha:

fecha.format(new Date(), 'MMMM Do YYYY, h:mm:ss a');
fecha.format(fecha.addDays(new Date(), 7), 'YYYY-MM-DD');
fecha.parse('2010-10-20', 'YYYY-MM-DD') < fecha.parse('2010-10-21', 'YYYY-MM-DD');

Summary

Moment offers a more feature-rich solution with extensive localization support, while Fecha provides a lightweight alternative focused on parsing and formatting. Moment's larger size and mutable API are drawbacks, especially for modern web applications. Fecha's simpler API and smaller footprint make it a good choice for projects with basic date handling needs, but it lacks some of Moment's advanced features.

Pros of date-fns

• More comprehensive feature set with a wide range of date manipulation functions
• Modular architecture allowing for tree-shaking and smaller bundle sizes
• Active development and larger community support

Cons of date-fns

• Larger overall package size if not using tree-shaking
• Steeper learning curve due to more extensive API

Code Comparison

fecha:

import fecha from 'fecha';

const formattedDate = fecha.format(new Date(), 'YYYY-MM-DD');
const parsedDate = fecha.parse('2023-05-15', 'YYYY-MM-DD');

date-fns:

import { format, parse } from 'date-fns';

const formattedDate = format(new Date(), 'yyyy-MM-dd');
const parsedDate = parse('2023-05-15', 'yyyy-MM-dd', new Date());

Summary

date-fns offers a more extensive set of features and better modularity, making it suitable for larger projects with complex date manipulation requirements. It benefits from active development and a larger community. However, it may have a steeper learning curve and potentially larger bundle size if not optimized.

fecha, on the other hand, is a lightweight alternative that provides basic date formatting and parsing functionality. It's simpler to use and has a smaller footprint, making it ideal for projects with minimal date-related needs.

The choice between the two libraries depends on the specific requirements of your project, considering factors such as feature needs, bundle size constraints, and development complexity.

Pros of dayjs

• More comprehensive API with a wider range of date manipulation and formatting options
• Supports plugins for extended functionality and localization
• Actively maintained with frequent updates and a larger community

Cons of dayjs

• Slightly larger file size compared to fecha
• May have a steeper learning curve due to more extensive features

Code Comparison

fecha:

import fecha from 'fecha';

const formattedDate = fecha.format(new Date(), 'YYYY-MM-DD');
const parsedDate = fecha.parse('2023-05-15', 'YYYY-MM-DD');

dayjs:

import dayjs from 'dayjs';

const formattedDate = dayjs().format('YYYY-MM-DD');
const parsedDate = dayjs('2023-05-15');

Both libraries offer similar basic functionality for date formatting and parsing. However, dayjs provides a more chainable API and additional methods for date manipulation:

const nextWeek = dayjs().add(1, 'week');
const startOfMonth = dayjs().startOf('month');

fecha focuses on simplicity and lightweight implementation, while dayjs offers a more feature-rich experience with plugin support and a larger ecosystem. The choice between the two depends on the specific requirements of your project and the level of date manipulation functionality needed.

Pros of tinydate

• Extremely lightweight (340 bytes minified + gzipped)
• Faster performance due to its minimalistic approach
• Simple API with a focus on string formatting

Cons of tinydate

• Limited functionality compared to fecha
• No parsing capabilities, only formatting
• Less flexibility in handling different date formats

Code Comparison

tinydate:

import tinydate from 'tinydate';
const stamp = tinydate('{YYYY}-{MM}-{DD}');
console.log(stamp(new Date()));

fecha:

import fecha from 'fecha';
const formattedDate = fecha.format(new Date(), 'YYYY-MM-DD');
console.log(formattedDate);

Summary

tinydate is a ultra-lightweight date formatting library, focusing on simplicity and performance. It's ideal for projects where size is a critical factor and only basic date formatting is required. However, it lacks the extensive functionality and flexibility offered by fecha.

fecha, on the other hand, provides a more comprehensive set of features, including both parsing and formatting capabilities. It supports a wider range of date formats and offers more flexibility in handling different date scenarios. While it's larger in size, it's still relatively lightweight compared to many other date libraries.

Choose tinydate for minimal, performance-focused date formatting, and fecha for a more feature-rich date manipulation library with broader capabilities.