HTML | <script> 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.
Syntax:
<script defer>
Example:
<!DOCTYPE html> < html > < head > < title > HTML < script > defer Attribute </ title > </ head > < body style = "text-align:center;" > < h1 style = "color:green" > GeeksForGeeks </ h1 > < h2 > HTML < script > 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 > |
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External script: my_script.js
function myFunction() { alert( "Script works" ); } |
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Output:
Before Click:
After Click:
Supported Browsers: The browsers supported by <script> defer Attribute are listed below:
- Google Chrome
- Internet Explorer
- Firefox
- Apple Safari
- Opera