Code Theory

HTML5

Forms & Validation

Native constraint validation, custom messages and submission behaviour.

Forms & Validation guides on Code Theory
Guide Length API status
Custom Validation Messages for HTML5 Form Constraints

Well, we already know that with HTML5 from constraints, client side form validation has become super easy.

643w Current
Trigger HTML5 Form Validation on JavaScript Submission (form.submit())

Most of the time when dealing with web forms, we either have a basic version where the user clicks on the submit button and the form submits to the relevant…

481w Current
JavaScript Fire onSubmit Event Handler Programmatically by Calling form.submit()

Unless you code your web pages in vanilla javascript, you’ll probably not notice this but when you do it’ll quite baffle you that the event listener you…

463w Current
Strategies for Select Dropdown Lists Placeholder

HTML5 brings us the placeholder attribute using which we can set default text on an input field or a textarea that goes away when you focus in the field and…

836w Current

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