HTML | DOM Input Text maxLength Property

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

Syntax:

  • It returns the Input Text maxLength property.
    textObject.maxLength
  • It is used to set the Input text maxLength property.
    textObject.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 text maxlength Field.

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

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

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    <!DOCTYPE html> 
    <html
      
    <head
        <title
            HTML DOM Input Text maxLength Property
        </title
    </head
      
    <body style="text-align:center;"
      
        <h1>GeeksForGeeks</h1
      
        <h2>DOM Input Text maxLength Property</h2
         <form id="myGeeks">
          <input type="text" id="text_id" 
               name="geeks" pattern="[A-Za-z]{3}"
          </form>
                     <br>
        <button onclick="myGeeks()">Click Here!</button
          
        <p id="GFG" style="font-size:20px;"></p
          
        <!-- Script to set the maxLength Property-->
        <script
            function myGeeks() { 
                var txt = document.getElementById("text_id").maxLength;
                document.getElementById("GFG").innerHTML = txt;
            
        </script
    </body
      
    </html>                     

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    Output:

    Before clicking on the button:

    After clicking on the button:

    Example-2 : This Example illustrates how to set the property.

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    <!DOCTYPE html> 
    <html
      
    <head
        <title
            HTML DOM Input Text maxLength Property
        </title
    </head
      
    <body style="text-align:center;"
      
        <h1>GeeksForGeeks</h1
      
        <h2>DOM Input Text maxLength Property</h2
                <form id="myGeeks">
        <input type="text" id="text_id" name="geeks" maxlength="60"
                     </form>
                     <br>
        <button onclick="myGeeks()">Click Here!</button
          
        <p id="GFG" style="font-size:20px;"></p
          
        <!-- script to set the maxLength Property-->
        <script
            function myGeeks() { 
                var txt = document.getElementById("text_id").maxLength;
                document.getElementById("GFG").innerHTML = 
            "The value of the maxLength attribute was changed to " + txt;
            
        </script
    </body
      
    </html>                     

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    Output :
    Before clicking on the button:

    After clicking on the button:

    Supported Browsers: The browser supported by DOM input Text maxLength Property are listed below:

    • Google Chrome
    • Internet Explorer
    • Firefox
    • Opera
    • Safari


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