Validate HTML
HTML Validations are a key feature to ensure that web forms receive correct and complete data before being submitted to the server.
HTML provides both basic built-in validations, which do not require JavaScript, and the option to create custom validations with scripts.
HTML validations help improve the user experience by providing instant feedback and ensuring that entered data meets the established requirements.
Types of HTML Validations
- Through attributes such as required, minlength, maxlength, pattern, and type, HTML allows validating fields without the need for JavaScript.
- Custom Error Messages: If the user does not comply with the restrictions, the browser displays automatic error messages that can be customized using attributes.
- Server-Side Validation: Although client-side validations improve usability, server-side validation is essential to ensure data security.
Exercises
Practical Exercise:
Statement:
Modify the following HTML code to include validations.
Result:
Quiz Exercise
Which of the following attributes is used to validate that a field is mandatory?
HTML Elements Reference
HTML Forms and Input Elements
HTML Meta and SEO
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