Vest is a new framework-agnostic form validation library that separates the validation logic from the feature logic while using a unit testing syntax style that is similar to Mocha and Jasmine.

HTML5 validation should be used for basic and common rules, while JavaScript validation should be used for advanced and custom rules. This way, you can leverage the built-in features of HTML5 and ...

JavaScript enhances HTML5 validation by providing the ability to create custom validation messages and rules. You can use the setCustomValidity () method of the HTML5 Constraint Validation API to ...

HTML5 offers form field validation support built into the HTML form input tags that should greatly reduce the need for JavaScript validation code. In this post, I look at some examples of this.