?? onerrorexample5.htm
字號:
<html>
<head>
<title>OnError Example</title>
<script type="text/javascript">
window.onerror = function (sMessage, sUrl, sLine) {
alert("An error occurred:\n" + sMessage + "\nURL: " + sUrl + "\nLine Number: " + sLine);
return true;
}
alert("Syntax error.";
</script>
</head>
<body onload="nonExistentFunction()">
<p>The syntax error on this page comes <em>after</em> the <code>onerror</code>
event handler is defined, so the custom dialog catches it.</p>
<p><strong>Note:</strong> This may not work in newer browsers with tighter security restrictions.</p>
</body>
</html>
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