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<html><body><h2>Common JavaScript Mistakes</h2><p>This example will return undefined:</p><p id="demo"></p><script>document.getElementById("demo").innerHTML = myFunction(55);function myFunction(a) { let power = 10; return a * power;}</script></body><!-- Mirrored from www.w3schools.com/js/tryit.asp?filename=tryjs_mistakes_return_4 by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 17:06:52 GMT --></html>