jquery-validation/jquery-validation
Jquery Validation
This project is a jQuery plugin and client-side form validator used to verify web form inputs before they are submitted to a server. It employs a rule-based validation engine to check user input against predefined or custom rules to ensure data integrity in the browser.
The tool is designed as an ARIA-compliant validation system, using accessibility attributes to link error messages to input fields. This ensures that screen reader users are notified when a field contains an invalid value during the form submission process.
The system supports remote server validation via asynchronous HTTP requests and allows for dynamic rule injection to add custom validation logic. It manages the user interface through DOM-linked error rendering and uses event-driven triggering to execute checks during focus, blur, or submit events.
Features
- Form Input Validation - Verifies form field values against a set of rules to ensure data integrity before submission.
- Client-Side Data Sanitization - Prevents malformed data from being sent to the server by validating input on the client side.
- Validation Rule Engines - Employs a rule-based engine to match input values against predefined logic functions.
- Form Field Announcements - Marks invalid fields with accessibility attributes to announce error states to assistive technologies.
- Form Field State Integrations - Uses ARIA attributes and state integrations to provide accessible error feedback for form controls.
- Screen Reader Accessibility - Connects error messages to input fields using ARIA attributes to notify screen reader users.
- WAI-ARIA Frameworks - Implements a validation system that uses ARIA attributes to maintain accessibility compliance.
- Client-Side Input Validators - Verifies data integrity and correctness of user input in the browser before form submission.
- Form Data Validation - Ensures user input in web forms meets specific requirements before being submitted to a server.
- Form Validation Libraries - Provides a library for defining and enforcing validation rules on web form inputs.
- jQuery Plugins - Extends jQuery to add a comprehensive rule-based validation system to web form elements.
- Accessibility Attribute Mapping - Implements dynamic mapping of validation states to ARIA attributes to ensure screen reader accessibility.
- Async Form Validators - Performs asynchronous validation checks against remote APIs to verify data in real time.
- Dynamic Validation Rules - Supports the registration of custom validation logic at runtime to extend the validator's rule set.
- UI Event Triggers - Automatically executes validation checks based on focus, blur, and form submission events.
- Validation Error Renderers - Provides mechanisms for dynamically injecting and removing validation error messages within the form UI.
- Remote Input Validation - Verifies form field values by sending asynchronous HTTP requests to a remote server endpoint.
- Validation Plugins - Standard drop-in form validation.
