Validator Interface

The Validator Interface is a blueprint in software development that defines how a program checks whether data or input is correct and valid before processing it further. Think of it as a quality inspector that ensures only accurate, well-formed data moves forward. Developers implement this interface to create specific validation rules for different data types or formats. By standardizing how validation occurs, the Validator Interface helps maintain data integrity, improve security, and prevent errors, making applications more reliable and robust.