jjsub/JS_simple_try_catch_throw_finally

## JS_simple_try_catch_throw_finally
<!-- Good JS simple try catch throw finally example-->

<!DOCTYPE html>
<html>
<body>

<p>Please input a number between 5 and 10:</p>

<input id="demo" type="text">
<button type="button" onclick="myFunction()">Test Input</button>

<p id="message"></p>

<script>
function myFunction() {
    var message, x;
    message = document.getElementById("message");
    message.innerHTML = "";
    x = document.getElementById("demo").value;
    try {
        x = Number(x);
        if(x == "")  throw "is empty";
        if(isNaN(x)) throw "is not a number";
        if(x > 10)   throw "is too high";
        if(x < 5)    throw "is too low";
    }
    catch(err) {
        message.innerHTML = "Input " + err;
    }
    finally {
        document.getElementById("demo").value = "";
    }
}
</script>

</body>
</html>


try it out on: http://www.w3schools.com/js/tryit.asp?filename=tryjs_finally_error
Read aboit it: http://www.w3schools.com/js/js_errors.asp
	<!-- Good JS simple try catch throw finally example-->

	<!DOCTYPE html>
	<html>
	<body>

	<p>Please input a number between 5 and 10:</p>

	<input id="demo" type="text">
	<button type="button" onclick="myFunction()">Test Input</button>

	<p id="message"></p>

	<script>
	function myFunction() {
	var message, x;
	message = document.getElementById("message");
	message.innerHTML = "";
	x = document.getElementById("demo").value;
	try {
	x = Number(x);
	if(x == "") throw "is empty";
	if(isNaN(x)) throw "is not a number";
	if(x > 10) throw "is too high";
	if(x < 5) throw "is too low";
	}
	catch(err) {
	message.innerHTML = "Input " + err;
	}
	finally {
	document.getElementById("demo").value = "";
	}
	}
	</script>

	</body>
	</html>


	try it out on: http://www.w3schools.com/js/tryit.asp?filename=tryjs_finally_error
	Read aboit it: http://www.w3schools.com/js/js_errors.asp