2013年11月12日 星期二

javascript-onerror

javascript debug onerror
javascript-debug


window.onerror=function(){
}

inf : http://www.w3schools.com/js/js_examples.asp
inf : http://www.w3schools.com/js/tryit.asp?filename=tryjs_onerror

<!DOCTYPE html>
<html>
<head>
<script>
onerror=handleErr;
var txt="";

function handleErr(msg,url,l)
{
txt="There was an error on this page.\n\n";
txt+="Error: " + msg + "\n";
txt+="URL: " + url + "\n";
txt+="Line: " + l + "\n\n";
txt+="Click OK to continue.\n\n";
alert(txt);
return true;
}

function message()
{
adddlert("Welcome guest!");
}
</script>
</head>

<body>
<input type="button" value="View message" onclick="message()" />
</body>

</html>

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