Function: isCustomReviewFormField()
ts
function isCustomReviewFormField(field: ReviewFormField): field is ReviewFormFieldRatingBars | ReviewFormFieldSelectionBars | ReviewFormFieldSingleChoice | ReviewFormFieldMultiChoice | ReviewFormFieldTextarea & { field_id: number };True when the field originates from a custom review question (carries a numeric field_id, joinable with question_answer[].id).
Parameters
field
Returns
field is ReviewFormFieldRatingBars | ReviewFormFieldSelectionBars | ReviewFormFieldSingleChoice | ReviewFormFieldMultiChoice | ReviewFormFieldTextarea & { field_id: number }