HTML | DOM Input Search pattern Property

Last Updated : 25 Aug, 2022

The DOM Input Search pattern Property in HTML DOM is used to set or return the pattern attribute of a search field. It is used to specify the regular expression on which the input elements value is checked. Use the global title attribute to describe the pattern for helping the user.

Syntax:

It returns the Input search pattern property.

searchObject.pattern

It is used to set Input search pattern property.

searchObject.pattern = regexp

Property Values: It contains single value regexp which is used to specify the regular expression that a search field value is checked against.

Return Value: It returns a string value which represents the regular expression that a search field value is checked against.

Example: This example illustrates the use of Input search pattern property.

HTML

<!DOCTYPE html>
<html>
<head>
    <title>
        Input Search pattern Property
      </title>
    <style>
        h1 {
            color: green;
        }
        h2 {
            font-family: Impact;
        }
        body {
            text-align: center;
        }
    </style>
</head>
<body>
    <h1>GeeksforGeeks</h1>
    <h2>
      Input Search pattern Property
      </h2>
    <form id="myGeeks">
        <input type="Search" 
               id="test" 
               placeholder="Type to search.."
               pattern="[A-Za-z]{3}">
    </form>
    <br>
    <br>
    <button ondblclick="Access()">
      click here
    </button>
    <p id="check" 
       style="font-size:24px;
              color:green;">
      </p>
    <script>
        function Access() {

            // Return Input search pattern property
            var s = document.getElementById(
                "test").pattern;
          
            document.getElementById(
                "check").innerHTML = s;
        }
    </script>
</body>
</html>