Garbage input leads to garbage output. Most designers and developers understand this concept and will split their text fields to ensure they get correctly formatted input. However, this is not the right way to do it and will cause UX issues regarding data perception and cognitive effort.

The most common text field inputs that get split are birthdate, credit card number, phone number, name, and address. This article will show you the best way to get these inputs in the correct format without splitting your text fields.