Checking a Form with JavaScript

Let the browser check a form with required, min and type, ask it in code with checkValidity(), add rules of your own with setCustomValidity(), and show each error next to its field where everyone, screen reader users included, can find it.

Updated

Cheat sheet: Checking a Form with JavaScript
Category
JavaScript
Level
Journeyman
Tags
aria-describedby, Client-Side Validation, Constraint validation, html, JavaScript, required, Validity state