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HTML | DOM Input Email readOnly Property
  • Difficulty Level : Basic
  • Last Updated : 14 Oct, 2019

The DOM Input Email readonly Property is used to set or return whether an Email Field should be read-only or not. It means that a user can not modify or changes an content already present in a particular Element (However, a user can tab to it, highlight it, and copy the text from it) whereas a JavaScript can be used to change the read-only value and make the input field editable.

Syntax:

  • It is used to return the readOnly property.
    emailObject.readOnly
  • It is used to set the readOnly property.
    emailObject.readOnly = true|false

Property Values:

  • true: It defines that email field is read only.
  • false: It defines that email field is not read only.

Return Value: It returns a boolean value which represent the email field is read only or not.

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






<!DOCTYPE html> 
<html
      
<head
    <title
        HTML DOM Input Email readOnly Property 
    </title
</head>     
  
<body STYLE="TEXT-ALIGN:CENTER;"
  
    <h1> GeeksforGeeks</h1
  
    <h2>DOM Input Email readOnly Property</h2
  
    E-mail: <input type="email" id="email" name="myGeeks"
          readonly> <BR><br>
  
    <button onclick="myGeeks()"
        Click Here! 
    </button
      
    <p id="GFG" style="font-size:20px;color:green;"></p
      
    <!-- Script to access input element with 
            type email attribute -->
    <script
        function myGeeks() { 
        <!--returning the readonly Property -->
            var em = document.getElementById("email").readOnly;
            document.getElementById("GFG").innerHTML =  em; 
        
    </script
</body
  
</html>                     

Output :
Before clicking on the button:

After clicking on the button:

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




<!DOCTYPE html> 
<html
      
<head
    <title
        HTML DOM Input Email readOnly Property 
    </title
</head>     
  
<body STYLE="TEXT-ALIGN:CENTER;"
  
    <h1> GeeksforGeeks</h1
  
    <h2>DOM Input Email readOnly Property</h2
  
    E-mail: <input type="email" id="email" name="myGeeks"
          readonly> <BR><br>
  
    <button onclick="myGeeks()"
        Click Here! 
    </button
      
    <p id="GFG" style="font-size:20px;color:green;"></p
      
    <!-- Script to access input element with 
            type email attribute -->
    <script
        function myGeeks() { 
        <!--returning the readonly Property -->
            var em = document.getElementById("email").readOnly =false;
            document.getElementById("GFG").innerHTML =  em; 
        
    </script
</body
  
</html>                     

Output:
Before clicking on the button:

After clicking on the button:

Supported Browsers: The browser supported by DOM input Email readOnly Property are listed below:

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

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