Trigger to Delete Child On Deletion of Parent

This trigger is to Delete the Child Records on Delete of Parent Record

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trigger DeleteContact on Account (After Delete) { Set<Id>AccIdSet = New Set<Id>(); List<Contact> ConDelList = New List<Contact>(); for(Account acc : trigger.old){ AccIdSet.add(acc.id); } for(contact con : [Select Id, AccountId from Contact WHERE AccountId In : AccIdSet]){ ConDelList.add(con); } Delete ConDelList; }