<html>
<body>
<h2>JavaScript Errors</h2>
<p>In this example we have written alert as adddlert to deliberately produce an error:</p>
<p id="demo"></p>
<script>
try {
adddlert("Welcome guest!");
}
catch(err) {
document.getElementById("demo").innerHTML = err.name;
}
</script>
</body>
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