date-fns Review

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Review of date-fns powered by the Slant community.

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What are the best JavaScript date formatting libraries?

Pros

Pro
Modular

Developers can pick only the functions they need to reduce the size of the library that's being downloaded (using bundlers such as webpack or browserify)

Pro
Immutable

Uses pure functions and always returns a new date object to prevent unexpected results.

Cons

Con
Their "distance in words" function is not very customizable

When comparing a certain date to the current date the function returns a pretty "opinionated" sentence such as "almost 2 years" which can't really be customizable and requires string manipulation to fit result to your needs.