HTML DOM Script defer Property

Last Updated : 22 Jun, 2023

The Script defer Property is used to set or return whether the script should be executed after the page has finished parsing. This Property is used to reflect the defer attribute of a <script> Tag. This attribute is only used for External JavaScript File.

Syntax:

It Returns the defer property.

scriptObject.defer

It is used to set the defer property

scriptObject.defer = true|false

Property Values: It contains the Boolean value which specifies whether a script should be executed when the page has finished parsing, or not

true: The script is executed when the page has finished parsing
false: The script will not be executed when the page has finished parsing.

Return Values: It returns a boolean value, and returns true if the script is executed after the loading of the page is finished.

Example: This Example returns the defer Property.

HTML

<!DOCTYPE html>
<html>
 
<head>
    <title>
        DOM script defer Property
    </title>
</head>
 
<body style="text-align:center;">
    <h1>
        GeeksForGeeks
    </h1>
    <h2>
        DOM script defer property
    </h2>
    <script id="myGeeks"
            type="text/javascript"
            src="my_script.js" defer>
    </script><br>
    <button onclick="Geeks()">Submit</button>
    <h2 id="demo"></h2>
    <script>
        function Geeks() {
            let x = 
            document.getElementById("myGeeks").defer;
            document.getElementById("demo").innerHTML = x;
        }
    </script>
</body>
</html>