<!DOCTYPE html>
<html lang="en-US">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script> </head>
<body>
<h1>jQuery.fn.extend() Method</h1>
<p>Click on the button to affect this paragraph</p>
<button>Click Me</button>
<script>
$(document).ready(function(){
$("button").click(function(){
jQuery.fn.extend({
myStyle: function(){
this.css({
"color": "red",
"font-size": "20px",
"font-style": "italic"
});
}
});
// just like ("p").css();
$("p").myStyle();
});
});
</script> </body>
</html>