Note: The pattern attribute works with the following input types: text, date, search, url, tel, email, and password. Tip: Use the global title attribute to describe the pattern to help the user.

Jan 25, 2026 · The pattern attribute is an attribute of the text, tel, email, url, password, and search input types. The pattern attribute, when specified, is a regular expression which the input's value must …

The HTML <input> pattern attribute is used to specify a regular expression that the input field's value must match before the form is submitted. This attribute helps ensure users enter data in a specific …

Jul 11, 2025 · The HTML pattern attribute is used with <input> elements to specify a regular expression that the input's value must match for the form to be submitted. It enforces specific formatting rules, …

Jun 19, 2025 · The HTML pattern attribute provides a powerful and convenient way to validate user input against regular expressions. By leveraging this attribute, you can enforce specific data formats, …

The pattern attribute of the <input> element allows you to add basic data validation without resorting to JavaScript. It works by matching the input value against a regular expression.

HTML pattern attribute is used with input elements to specify regular expression pattern that the user's input must match in order for the form submission to be accepted.

Only if the input matches the pattern is the input accepted by the browser. A simple word or sequence of numbers is also a valid pattern. pattern="Hello World" can already be a simple pattern used by the …

Learn how to use the HTML pattern attribute for input validation using regular expressions. Beginner-friendly examples for letters, numbers, formats, and more.

Apr 21, 2021 · In this tutorial we’ll explore HTML’s pattern attribute, using it to help us customize the way we validate our forms.