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<html><body><h2>JavaScript Functions</h2><p>A function can access variables defined outside the function:</p><p id="demo"></p><script>let a = 4;myFunction();function myFunction() { document.getElementById("demo").innerHTML = a * a;} </script></body><!-- Mirrored from www.w3schools.com/js/tryit.asp?filename=tryjs_function_scope1 by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 17:06:53 GMT --></html>