在JavaScript中使用throw 语句来捕获自定义异常。您可以尝试运行以下命令以使用自定义异常-
<html>
<head>
<script>
<!--
function myFunc() {
var a = 100;
var b = 0;
try {
if ( b == 0 ) {
throw( "除以零误差。" );
} else {
var c = a / b;
}
}
catch ( e ) {
alert("Error: " + e );
}
}
//-->
</script>
</head>
<body>
<p>Click the following to see the result:</p>
<form>
<input type = "button" value = "Click Me" onclick = "myFunc();" />
</form>
</body>
</html>