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HTML | DOM Input Radio disabled Property

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  • Difficulty Level : Basic
  • Last Updated : 26 Aug, 2022
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The DOM Input Radio disabled Property is used to set or return whether the Radio Button must be disabled or not. A disabled Radio Button is un-clickable and unusable. It is a boolean attribute and used to reflect the HTML Disabled attribute. It is usually rendered in grey color by default in all the Browsers. 

Syntax: 

  • It returns the disabled property.
radioObject.disabled
  • It is used to set the disabled property.
radioObject.disabled = true|false

Property Values: 

  • true: It defines that the Input Radio Button is disabled.
  • False: It has a default value. It defines that the Radio Button is not disabled.

Return Value: It returns a boolean value which represents that the Radio Button is disabled or not. 

Example-1: This Example illustrates how to return the Property. 

HTML




<!DOCTYPE html>
<html>
<head>
    <style>
        body {
            text-align: center;
        }
         
        h1 {
            color: green;
        }
    </style>
</head>
<body>
    <h1>
      GeeksforGeeks
    </h1>
    <h2>
      HTML DOM Input Radio Disabled Property
    </h2>
    <form id="myGeeks">
        Radio Button:
        <input type="radio"
               checked=true
               id="radioID"
               value="Geeks_radio"
               name="Geek_radio"
               disabled>
        <br>
        <br>
    </form>
    <button onclick="GFG()">
        Click!
    </button>
    <p id="GFG"
       style="font-size:25px;
              color:green;">
    </p>
    <script>
        function GFG() {
 
            // Return Inpiut Radio disabled Property
            var x =
                document.getElementById(
                  "radioID").disabled;
           
            document.getElementById(
              "GFG").innerHTML = x;
        }
    </script>
</body>
</html>

Output: 

Before Clicking On Button:

  

After Clicking On Button:

  

Example-2: This Example illustrates how to set the Disabled Property. 

HTML




<!DOCTYPE html>
<html>
<head>
    <style>
        body {
            text-align: center;
        }
         
        h1 {
            color: green;
        }
    </style>
</head>
<body>
    <h1>
      GeeksforGeeks
    </h1>
    <h2>
      HTML DOM Input Radio Disabled Property
    </h2>
    <form id="myGeeks">
        Radio Button:
        <input type="radio"
               checked=true
               id="radioID"
               value="Geeks_radio"
               name="Geek_radio"
               disabled>
        <br>
        <br>
    </form>
    <button onclick="GFG()">
        Click!
    </button>
    <p id="GFG"
       style="font-size:25px;
              color:green;">
    </p>
    <script>
        function GFG() {
 
                   // Setting Inpiut Radio disabled Property
            var x =
                document.getElementById(
                  "radioID").disabled = "false";
           
            document.getElementById(
              "GFG").innerHTML = x;
        }
    </script>
</body>
</html>

Output: 

Before Clicking On Button:

  

After Clicking On Button:

  

Supported Browsers: The browser supported by DOM input Radio disabled property are listed below:

  • Google Chrome
  • Edge 12+
  • Firefox
  • Opera
  • Safari

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