HTML | defer Attribute
The HTML defer attribute is a boolean attribute which is used to specify that script is executed when the page has finished parsing. This attribute only works with external scripts.
Applicable:
<script>
Example:
html
<!DOCTYPE html><html><head> <title> HTML defer Attribute </title></head><body style="text-align:center;"> <h1 style="color:green"> GeeksForGeeks </h1> <h2> HTML defer Attribute </h2> <script id="myGeeks" type="text/javascript" src="my_script.js" defer> </script> <br> <button type="button" onclick="myFunction()"> Submit </button></body></html> |
External script: my_script.js
javascript
function myFunction() { alert("Script works");} |
Output:
Before Click:
After Click:
Supported Browsers: The browsers supported by HTML defer Attribute are listed below:
- Google Chrome
- Edge 12 and above
- Firefox 3.5 and above
- Apple Safari
- Opera
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