Full Example of HTML pattern Attribute in input

The pattern attribute specifies a regular expression that the input element's value is checked against.

index.html

Example: HTML

<!DOCTYPE html>
<html>
<body>

<h1>The input pattern attribute</h1>

<p>The pattern attribute specifies a regular expression that the input element's value is checked against.</p>

<form action="/action_page.php">
  <label for="country_code">Country code:</label>
  <input type="text" id="country_code" name="country_code" pattern="[A-Za-z]{3}" title="Three letter country code"><br><br>
  <input type="submit" value="Submit">
</form>

</body>
</html>

Output should be:

Type:	html
Category:	Web Tutorial
Sub Category:	HTML Input Attributes
Uploaded by:	Admin