Error Handling Programs

One Error Program


<!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() 
 {
  alertMe("Welcome guest!");
 }
</script>
</head>

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

</html>