17 Feb 2025

Key Takeaways HTML5 introduced new form attributes for browser-based form validation, but it has restrictions such as inability to customize error messages and style, and the need to create patterns for input fields. jQuery form validation plugins

06 Dec 2024

jQuery Validation: Creating Custom Rules Without RegexThe jQuery Validate plugin provides a powerful way to create custom validation rules. Here's...

23 Feb 2025

Detailed explanation of jQuery form verification grouping rules and FAQs If you need to verify multiple fields as a whole (for example: date of birth, address, etc.) instead of displaying three separate verification messages, you can use the following method! Grouping verification rules into a verification message is very practical! $("form").validate({ rules: { DayOfBirth: { required: true }, MonthOfBirth: { required: true }, YearOfBirth: { required

26 Feb 2025

When using the jQuery validation plugin, you may experience verification stuttering when typing in the input field. This is most common when using custom verification rules triggering ajax request to verify user input (for example, checking if the user's email is unique in the database). The lag experience was awful. To eliminate continuous validation checks, add the following parameters to the form validation function: onkeyup: false, onclick: false, onfocusout: false, Therefore, your verification function might look like this: $("#form").validate({ onkeyup: false

23 Oct 2024

This article addresses issues with date validation in PHP using regular expressions. It presents an alternative solution using checkdate() for robust validation and discusses additional input validation techniques to enhance the result.

24 Jan 2025

Regular Expression Email Validation and its PitfallsDespite the wide usage of regular expressions to validate email addresses, a common expression...

28 Jun 2025

Use HTML's pattern attribute to effectively verify the form input format. This property uses regular expressions to ensure that the input complies with the specified rules, such as username, phone number, password, etc.; verification is only triggered during submission and attention should be paid to escape characters and browser compatibility; at the same time, the user should be prompted with title and assisted with back-end verification to ensure data security.

20 Oct 2024

Regular Expression for Date Validation in DD/MM/YYYY FormatValidating dates in Javascript is a common task, and ensuring proper validation for dates in the DD/MM/YYYY format is crucial. While there are numerous regex expressions available, finding th

07 Nov 2024

How to Customize HTML5 Form Validation PopupsIn HTML5, forms provide built-in validation capabilities for required fields. However, the default...