Analysis of pattern attribute of input box in html

黄舟
Release: 2017-10-27 09:57:59
Original
4702 people have browsed it

Definition and Usage

pattern AttributeSpecifies the pattern used to validate the input field.

Pattern refers to regular expression. You can read about this in our JavaScript tutorial.

Note: The pattern attribute applies to the following types: text, search, url, telephone, email and password.

Tip: Please use the standard "title" attribute to describe the schema.

Grammar:

<input pattern="regexp">
Copy after login

Example:

<!DOCTYPE HTML>
<html>
<body>
<form action="/example/html5/demo_form.asp" method="get">
Copy after login

Country code:

<input type="text" name="country_code" pattern="[A-z]{3}"
title="三个字母的国家代码" />
<input type="submit" />
</form>
</body>
</html>
Copy after login

The above is the detailed content of Analysis of pattern attribute of input box in html. For more information, please follow other related articles on the PHP Chinese website!

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn:Public welfare online PHP training,Help PHP learners grow quickly!