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<!DOCTYPE html> <html> <body> <h1>JavaScript Errors</h1> <p>In this example we have written adddlert to deliberately produce an error:</p> <p id="demo"></p> <script> try { adddlert("Welcome guest!"); } catch(err) { document.getElementById("demo").innerHTML = err.message; } </script> </body> <!-- Mirrored from www.globaltuts.com/jsref/tryit.asp?filename=tryjsref_error_message by HTTrack Website Copier/3.x [XR&CO'2014], Tue, 26 Jul 2022 06:17:24 GMT --> </html>