What does the mask input feature do in forms?

The mask input feature in forms is designed to enhance data integrity and user experience by restricting input to a specific format. This functionality is particularly useful when collecting information like phone numbers, dates, or credit card details, where a certain structure is required for the data to be valid and usable. By applying a mask, the form can ensure that users enter the information in the correct format, thereby reducing the likelihood of errors and ensuring that collected data is consistent.

For instance, when a user is required to enter a phone number, a mask can guide them to input it in the expected format (e.g., (123) 456-7890), making it clear how the input should appear. This not only helps in capturing accurate data but also enhances the overall user experience by providing visual cues and preventing users from submitting incorrectly formatted data.