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What is the role of throw statement in JavaScript?
Use the throw statement to raise your built-in exceptions or your customized exceptions. Later these exceptions can be captured and you can take appropriate action.
Example
You can try to run the following code to implement throw statement −
<html>
<head>
<script>
<!--
function myFunc()
{
var a = 100;
var b = 0;
try{
if ( b == 0 ){
throw( "Divide by zero error." );
} 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>
Updated on: 23-Jun-2020
84 Views
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