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HTML | DOM Input Password maxLength Property

  • Difficulty Level : Basic
  • Last Updated : 16 Apr, 2019
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The DOM Input Password maxLength Property is used to set or return the value of a maxLength attribute of a password field. It specifies the maximum number of characters that have been allowed in the element.

Syntax:

  • It is used to return the maxLength property.
    passwordObject.maxLength
  • It is used to set the maxLength property.
    passwordObject.maxLength = integer

Property Values:

  • number: It specifies a maximum number of characters that are allowed in the Password Field.

Return Value: It returns a numeric value which represents the maximum number of characters that have been allowed in the Password field.

Example: This example illustrates how to return the property.






<!DOCTYPE html> 
<html
  
<body style="text-align:center;"
  
    <h1 style="color:green;"
            GeeksForGeeks 
        </h1
  
    <h2>DOM Input Password maxLength Property</h2
       
   <form id="myGeeks">
     Password: <input type="password"
        id="myPsw"
          maxlength="8">
         </form>
    <br><br>
    <button onclick="myFunction()"
    Click Here! 
</button
  
    <p id="demo" style="color:green;font-size:25px;"></p
  
    <script
        function myFunction() { 
            var x = 
            document.getElementById( 
            "myPsw").maxLength;
              
            document.getElementById( 
            "demo").innerHTML = 
          There are only " + x + " maximum characters" +
             "allowed in a Password Field."; 
        
    </script
  
</body
  
</html>                    

Input:
Before clicking on the button:

Output:
After clicking on the button:

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




<!DOCTYPE html> 
<html
  
<body style="text-align:center;"
  
    <h1 style="color:green;"
            GeeksForGeeks 
        </h1
  
    <h2>DOM Input Password maxLength Property</h2
       
   <form id="myGeeks">
     Password: <input type="password"
        id="myPsw"
          maxlength="8">
         </form>
    <br><br>
    <button onclick="myFunction()"
    Click Here! 
</button
  
    <p id="demo" style="color:green;font-size:20px;"></p
  
    <script
        function myFunction() { 
            var x = 
            document.getElementById( 
            "myPsw").maxLength = 6;
              
            document.getElementById( 
            "demo").innerHTML = 
    "Maximum number of characters allowed " +
     "in password field now " + x; 
        
    </script
  
</body
  
</html>                    

Output:
Before clicking on the button :

After clicking on the button:

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

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

Attention reader! Don’t stop learning now. Get hold of all the important HTML concepts with the Web Design for Beginners | HTML  course.




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