Add Device number format #10588

Is your feature request related to a problem? Please describe.

I'd like to more easily & accurately identify the user's preferred number format, to use when formatting numbers in my app to match this.

Describe the solution you'd like

I'd like to see NativeScript's Device class contain a numberFormat property to expose their OS-level user preference:

Identifying the user's preference is the goal here; not actually reformatting of numbers. Once I have that, I can handle formatting numbers within my app to match their preference.

From iOS Settings -> General -> Language & Region -> Number Format:

Describe alternatives you've considered

I've tried:

• Using Intl.NumberFormatter in NativeScript (v8.7.2), but it is broken and always uses a comma thousands separator. The Intl class is not supported currently apparently.
• I've considered npm's Intl class, but it hasn't been updated in 8 years, and I found errors, shockingly, even in the current NodeJS Intl class for thousands and fractional separators for certain regions. This class is also not consistent with iOS's number formatting for certain regions.
• I ended up using a Node script to create base data set of thousands and fractional separators, and then manually correcting and handling scenarios such as french-speaking Canada vs English speaking Canada.

However, all of the above are error prone, require maintenance, and are not guaranteed to respect/match the user's system-level preference on iOS.

The ideal solution would be to get this from the user's iOS system preferences, so we can format it to what the user expects.

Anything else?

No response

Please accept these terms

• I have searched the existing issues as well as StackOverflow and this has not been posted before
• I agree to follow this project's Code of Conduct