This is building on my previous post on how to use regular expressions with j Query. Update 12/05/13: Separated into versions for testing.
//reported to validate incorrectly: [email protected] as true /[A-Z0-9._% -] @[A-Z0-9-] .
There are three main reasons: In the real world, developers tend to use a combination of client-side and server-side validation, to be on the safe side.
One of the features of HTML5 is the ability to validate most user data without relying on scripts.
However, this doesn't disable support for the constraint validation API nor the application of the CSS pseudo-class or other As you can see, the HTML is almost the same; we just removed the HTML validation features.
Note that ARIA is an independent specification that's not specifically related to HTML5.
The truth is that none of us filling out forms — there is a lot of evidence to show that users get annoyed by forms, and it will cause them to leave and go somewhere else if they are done poorly. We want to make filling out web forms as painless as possible, so why do we insist on blocking our users at every turn?
We also want to help our users to fill out our forms correctly and not get frustrated when trying to use our apps.
Form validation helps us achieve these goals — this article tells you what you need to know.
This API consists of a set of methods and properties available on each form element.
attribute to turn off the browser's automatic validation; this lets our script take control over validation.