Forms

Documentation#

• FormData: MDN reference for the FormData API used to construct key/value pairs from form fields.

Validation#

• Constraint validation
• ValidityState

Progressively Enhanced Form Validation#

Great guide for enhancing forms with validation, using different techniques and built-in validation methods.

• Part 1: HTML and CSS
• Part 2: Layering in JavaScript
• Part 3: Validating a checkbox group
• Part 4: Custom validation messages