useFieldArray default keyName id => key?

[viktor89]

Often times I run into the issue that useFieldArray defaults to keyName='id'. This is an issue because most times the objects in the field arrays have their own id-field - especially if you're editing some existing data, rather than creating new.

This is of course solved by changing the keyName in useFieldArray. I do however think the default naming is bad. Since this value is used as a key-prop, shouldn't it rather be called key by default? This would make more sense, IMO. It's not a big thing, but I think you would see less need for changing the default keyName if it wasn't defaulted to 'id'.

[bluebill1049]

This is something we could consider in the next breaking change (major version), in fact, react 18 will have a new hook useId, we can look into that later on as well.