When a boolean flag like touched is set on a form instance, it may be useful to know which field(s) contribute to that. It can be done by iterating through all fields and checking the flag on each of them, but there could be a more conventient way. There are special properties listing the fields for each flag, already available on the form instance:
touchedFields: an array of field names that have the touched flag
dirtyFields: an array of field names that have the dirty flag
invalidFields: an array of field names that have the invalid flag
validatingFields: an array of field names that have the validating flag
visitedFields: an array of field names that have the visited flag
modifiedFields: an array of field names that have the modified flag
focusedField: the field names that currently has focus
When a boolean flag like
touchedis set on a form instance, it may be useful to know which field(s) contribute to that. It can be done by iterating through all fields and checking the flag on each of them, but there could be a more conventient way. There are special properties listing the fields for each flag, already available on the form instance:touchedFields: an array of field names that have thetouchedflagdirtyFields: an array of field names that have thedirtyflaginvalidFields: an array of field names that have theinvalidflagvalidatingFields: an array of field names that have thevalidatingflagvisitedFields: an array of field names that have thevisitedflagmodifiedFields: an array of field names that have themodifiedflagfocusedField: the field names that currently has focus