HTML5 has introduced many features to the browser; some HTML-based, some in the form of JavaScript APIs, but all of them useful. Among those we have the placeholder attribute, which shows text in a field until the field is focused upon, then hides the text.

JQuery Validation is an efficient, resilient and widely adopted solution for client-side validation. Since JQuery's official support by Microsoft and the introduction of Unobtrusive Client Validation for .NET, it has become easier than ever to integrate with applications that use .NET forms.