I have a reactive form for entering sales that has multiple identical lines (item#, description, quantity, retail, and extended retail). It is using a FormArray if that makes any difference on the answer. If I add (change)="onChangeItem($event) to the itemNumber field, the function is fired as expected. However, I can't figure out which itemNumber field was changed (i.e. which line). The only solution I have come up with is to append the index to the id of each field so the ids will be like itemNumber1, itemNumber2, etc. but that seems like an odd way to do it. Is there something in the event that tell me which item was changed or is there another way to determine this? My goal is to not process every line every time one line changes. Continue reading...
