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HTML | DOM Input URL required Property

  • Difficulty Level : Basic
  • Last Updated : 15 Oct, 2021

The DOM Input URL required Property in HTML DOM is used to set or return whether Input url Field should be filled or not when submitting the form. This property is used to reflect the HTML required attribute.
Syntax: 

  • It returns the Input url required property. 
urlObject.required
  • It is used to set the Input url required property. 
urlObject.required = true|false

Property Values:  

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  • true: It specifies that the url field must be filled out before submitting the form.
  • false: It is the default value. It specifies that the url field must not be filled out before submitting the form.

Return Value: It returns a Boolean value which represents that the URL Field must be filled or not before submitting the form.
Example-1: This example illustrates how to return Input url required property.  

html




<!DOCTYPE html>
<html>
 
<head>
    <title>
        DOM Input URL required Property
    </title>
</head>
 
<body>
    <center>
        <h1 style="color:green;">
                GeeksForGeeks
            </h1>
 
        <h2>
          DOM Input URL required Property
      </h2>
 
        <label for="uname"
               style="color:green">
            <b>Enter URL</b>
        </label>
 
        <input type="url"
               id="gfg"
               placeholder="Enter URL"
               size="20"
               required>
 
        <br>
        <br>
 
        <button type="button"
                onclick="geeks()">
            Click
        </button>
 
        <p id="GFG"
           style="color:green;
                  font-size:25px;">
      </p>
 
 
        <script>
            function geeks() {
               
                var link =
                    document.getElementById(
                  "gfg").required;
               
                document.getElementById(
                  "GFG").innerHTML =
                  link;
            }
        </script>
    </center>
</body>
 
</html>

Output: 
Before Clicking On Button: 
 



After Clicking Button: 
 

Example-2: This Example illustrates how to set the Input url required Property. 

html




<!DOCTYPE html>
<html>
 
<head>
    <title>
        DOM Input URL required Property
    </title>
</head>
 
<body>
    <center>
        <h1 style="color:green;">
                GeeksForGeeks
            </h1>
 
        <h2>
          DOM Input URL required Property
      </h2>
 
        <label for="uname" style="color:green">
            <b>Enter URL</b>
        </label>
 
        <input type="url"
               id="gfg"
               placeholder="Enter URL"
               size="20"
               required>
 
        <br>
        <br>
 
        <button type="button"
                onclick="geeks()">
            Click
        </button>
 
        <p id="GFG"
           style="color:green;
                  font-size:25px;">
      </p>
 
 
        <script>
            function geeks() {
               
                // Set URL required property.
                var link =
                    document.getElementById(
                      "gfg").required = "false";
               
                document.getElementById(
                  "GFG").innerHTML = link;
            }
        </script>
    </center>
</body>
 
</html>

Output: 
Before Clicking On Button: 
 

After Clicking On Button: 
 

Supported Browsers: The browser supported by DOM input URL required Property are listed below: 

  • Google Chrome
  • Internet Explorer 10.0 +
  • Firefox
  • Opera
  • Safari 



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