JavaScript throw Statement
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JavaScript throw Statement
The throw statement can be used within a try block of code to create your own run-time errors.
When an exception occurs in the try block, JavaScript will normally stop, and control will be passed to the catch block with user-defined exception (message).
Note: If no catch block exists among caller functions, the program will terminate.
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<p id="point"></p>
<script>
var x = document.getElementById("point");
var num = 50;
try{
if(num < 100)
throw "Number is less than 100";
else
x.innerHTML = num;
}
catch(e){
x.innerHTML = "Error : "+ e;
}
</script>
</body>
</html>
Syntax
throw "custom error text"
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