JavaScript Lesson 20 | Forms & Validation | Real-time Checks, Submission & UX скачать в хорошем качестве

JavaScript Lesson 20 | Forms & Validation | Real-time Checks, Submission & UX

#javascript #forms #formvalidation Lesson 20: Forms & Validation in JavaScript. Learn client-side validation patterns: real-time checks (blur/input), showError/showSuccess UI feedback, preventDefault on submit, validate email/password/age, confirm password, checkbox/radio checks, terms validation, and processing form data safely. Includes examples for username rules, password strength, age limits, select inputs, checkboxes, radio buttons and displaying JSON output. What you’ll learn: • Real-time validation: blur and input handlers for better UX. • Validation functions: username, email regex, password rules, confirm password, and age range. • Form submission: preventDefault, aggregate validation, show errors, and processFormData. • Accessibility & feedback: error messages, input border states, scrolling to results. • Patterns: showError/showSuccess functions, modular validation, and displaying JSON output.