How to watch() only for special subfields in array of objects?

[sad8c]

For example:
I have contacts Array Field (useFieldArray()). Each contact is an object with contactType and contactValue fields.
I need to watch only for each contactType field in contacts array, because watch("contacts") is excessively.
I need something like watch("contacts[].contactType"), but it doesn't work.

Thanks!

[bluebill1049]

watch("contacts[].contactType") don't think we support such look up.

[sad8c]

Of course! But maybe some another way?

[bluebill1049]

unless you can specify which field you want to watch within the array.