How to define a function in jQuery?

In this tutorial, we are going to see how to define a function in jQuery? The following example will show you how to define a function in jQuery. Try to test the following code, you will see a button “Click here”, when you click on it, in the jQuery code (line 12) we call our function “myFunction()” that we defined in line 8.

How to define a function in jQuery?

<!DOCTYPE html>
<html>
	<head>
		<title>How to define a function in jQuery?</title>
		<script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>
		<script type="text/javascript">
			$(document).ready(function(){
				$.myFunction = function(){ 
					alert('You have successfully defined the function!'); 
				}
				$(".btn").click(function(){
					$.myFunction();
				});
			});
		</script> 
	</head>
	<body>
		<button type="button" class="btn">Click here</button>
	</body>
</html>

Result

How to define a function in jQuery?

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