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JavaScript JavaScript Basics (Retired) Creating Reusable Code with Functions Creating a Function

How to call a function?

How do you call a function you just created?

script.js
function sayHi() {
    alert("Hi");
}
index.html
<!DOCTYPE HTML>
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>JavaScript Basics</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>

1 Answer

Dan Garrison
Dan Garrison
22,457 Points

Hi Edwin,

After you define your function, you just need to type sayHi(). This will call the function and run the code inside of it.