React-datepicker: Error with YYYY in date-fns v2

[iop280]

https://github.com/Hacker0x01/react-datepicker/issues/1767

• Issue still persists in 2.7.0 from clean node_modules install

[wparam]

+1

[caub]

This problem is particularly annoying

It's rarely good to use an alpha version (date-fns v2.alpha https://github.com/Hacker0x01/react-datepicker/blob/master/package.json#L103)

@Darrken It wasn't possible to use the 1.x version of date-fns? (which would accept those older date formats, they are maybe non-standard but it helps a lot for a smoother transition, we have a lot of those date formats in DB, we can't migrate them all at once)

I'm trying with something hacky like this, but as you can see it's fragile:

// https://github.com/date-fns/date-fns/blob/master/docs/unicodeTokens.md
// converts from moment which use non-standard formats, to date-fns use https://www.unicode.org/reports/tr35/tr35-dates.html#Date_Field_Symbol_Table
const fixDateFns2Format = format => format
  .replace('YYYY', 'yyyy') // full year
  .replace(/\bDD\b/, 'dd') // day of month, short
  .replace('dddd', 'cccc'); // day of week, long

[modemmute]

Problem persists in 2.8.0. This error makes this library unusable until it's fixed. ☠️
Error: RangeError: Use yyyy instead of YYYY for formating years

[askesis]

+1

For now I ought to use the 2.4.... version of this package

[YuriScarbaci]

+1
Still a problem in version 2.9.6
version 2.4.0 works as intended

[stale[bot]]

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