By Dr. Bland, Expert in Validation and Related Fields
Published on a Tuesday, in a galaxy far, far away
Validation is the process of ensuring that user input matches the expected format. It's like checking if a user's input is a valid input.
For example, if a user inputs a name, you'd want to check if it's not a number, right? Or if a user inputs an email, you'd want to check if it's in the right format, like this: john.doe@example.com
And so on, and so forth.
Next Up: Advanced ValidationRegular Expressions (regex) are like the Swiss Army knife of validation. They can handle any type of input, like this: /^\d{3,5}$/
But be careful not to overuse them, or you'll end up with a regex-induced coma.
And then there's the trusty old friend, the if statement. Simple, yet effective, like a good ol' hammer.
Validation 101: For BeginnersImagine a world where validation is not just a checkbox on a form. Imagine a world where validation is a while loop that never ends.
That's the world of enterprise software development.
Validation in the Real World