Home > Article > Web Front-end > Analysis of pattern attribute of input box in html
Analysis of pattern attribute of input box in html
- 黄舟Original
- 2017-10-27 09:57:594733browse
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 d5fd7aea971a85678ba271703566ebfd types: text, search, url, telephone, email and password.
Tip: Please use the standard "title" attribute to describe the schema.
Grammar:
<input pattern="regexp">
Example:
<!DOCTYPE HTML> <html> <body> <form action="/example/html5/demo_form.asp" method="get">
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>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!
Statement：
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
Previous article：Small examples of html, CSS and JavaScript (pictures)Next article：Small examples of html, CSS and JavaScript (pictures)