instanceof operator
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<html>
<head>
<title>Try Catch Example</title>
<script type="text/javascript">
try {
eval("a ++ b"); //causes SyntaxError
} catch (oException) {
if (oException instanceof SyntaxError) {
alert("Syntax Error: " + oException.message);
} else {
alert("An unexpected error occurred: " + oException.message);
}
}
</script>
</head>
<body>
</body>
</html>
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