Issue : format function throw error when locale passed including numbering system ( ar-u-nu-arab ) - Githubissues

formkit / tempo

📆 Parse, format, manipulate, and internationalize dates and times in JavaScript and TypeScript.

https://tempo.formkit.com

MIT License

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Issue : format function throw error when locale passed including numbering system ( ar-u-nu-arab ) #68

Open peter-emad99 opened 3 months ago

peter-emad99 commented 3 months ago

i didn't find way to pass {numberingSystem:'arab'} , it's a valid option to intl.DateTimeFormatOptions

but i can include it in locale string like this ar-u-nu-arab

this throw invalid locale tag ar-u-nu-arab-u-hc-h12 error as format function already append hour cycle to the locale

possible solutions

providing a way to customize the intl.DateTimeFormatOptions so we can path {numberingSystem:'arab'}
removing the -u-hc-h12 appended to locale and using hour12 and hourCycle options instesd
auto resolving the numbering system from the locale by leveraging the Intl.Locale().numberingSystem