Question 1

How to format a date with date-fns?

Accepted Answer

Use the `format` function from date-fns with a Date object and a format string, like `format(new Date(), 'yyyy-MM-dd')`. The documentation lists all available formatting tokens for customization.

Question 2

date-fns vs Moment.js: which should I choose?

Accepted Answer

date-fns is modular and immutable, ideal for modern bundles and predictable code, while Moment.js is larger and mutable. For new projects, date-fns is often preferred due to better tree-shaking and safety features.

Question 3

Does date-fns handle time zones?

Accepted Answer

Yes, starting with v4.0, date-fns offers first-class time zone support with functions like `zonedTimeToUtc`. You can format and manipulate dates in specific time zones without external libraries.

Question 4

How to reduce bundle size when using date-fns?

Accepted Answer

Import only the specific functions you need, such as `import { format } from 'date-fns'`. This leverages tree-shaking to exclude unused code, keeping your bundle lean as described in the modular design.

Question 5

Is date-fns good for React applications?

Accepted Answer

Yes, date-fns works seamlessly with React or any JavaScript framework. You can use it in components, hooks, or effects to handle date logic without compatibility issues.

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