HTML | DOM Input Search maxLength Property

Last Updated : 18 Jul, 2022

The DOM Input Search maxLength Property in HTML DOM is used to set or return the value of maxlength attribute of a search Input Field. It specifies the maximum number of characters that have been allowed in the search field. The default value of Input search maxLength property is 524288.

Syntax:

It returns the Input search maxLength property.

searchObject.maxLength

It is used to set the Input search maxLength property.

searchObject.maxLength = number

Property Values: It contains a single value number which is used to specify the maximum number of characters that are allowed in the search maxlength Field.

Return Value: It returns a numeric value which represents the maximum number of character that has been allowed in the search maxlength field.

Example-1: This example illustrates how to return the Input search maxLength property.

html

<!DOCTYPE html>
<html>

<head>
    <title>
      Input Search maxLength Property
  </title>
    <style>
        h1 {
            color: green;
        }
        
        h2 {
            font-family: Impact;
        }
        
        body {
            text-align: center;
        }
    </style>
</head>

<body>

    <h1>GeeksforGeeks</h1>
    <h2>Input Search maxLength Property</h2>
    <form id="myGeeks">
        <input type="Search" 
               id="test" 
               name="myGeeks"
               placeholder="Type to search.." 
               maxlength="45">
    </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 maxLength Property 
            var s = document.getElementById(
                "test").maxLength;
          
            document.getElementById(
                "check").innerHTML = s;
        }
    </script>

</body>

</html>

Output:

Before Clicking On Button:

After Clicking On Button:

Example-2: This Example illustrates how to set the Input search maxlength Property.

html

<!DOCTYPE html>
<html>

<head>
    <title>
      Input Search maxLength Property
  </title>
    <style>
        h1 {
            color: green;
        }
        
        h2 {
            font-family: Impact;
        }
        
        body {
            text-align: center;
        }
    </style>
</head>

<body>

    <h1>GeeksforGeeks</h1>
    <h2>Input Search maxLength Property</h2>
    <form id="myGeeks">
        <input type="Search"
               id="test"
               name="myGeeks"
               placeholder="Type to search.."
               maxlength="45">
    </form>
    <br>
    <br>
    <button ondblclick="Access()">
      click here
    </button>

    <p id="check" 
       style="font-size:24px;
              color:green;">
  </p>

    <script>
        function Access() {

            // Setting the Input maxLength Property
            var s = document.getElementById(
                "test").maxLength = "60";
          
            document.getElementById(
                "check").innerHTML = 
       "The value of the maxLength attribute was changed to "
            + s;
        }
    </script>

</body>

</html>