Function with if statement problem

samyouel · 02-12-2013, 09:02 PM

hello guys, for my coursework i am asked to write a function named capitalCity which prompts the user for answer of "what is the capital city of france" if the answer is correct an alert box will say correct, otherwise is will say incorrect.

here is my code which i cant seem to get working

<!DOCTYPE html>

<html>

<head>

<script type="text/javascript">

	

	function capitalCity(){

		var answer = prompt("what is the capital city of france?");

			if (answer == "paris" || "Paris" || "PARIS"){

				alert("you are correct");

				} else {

					alert("you are incorrect");

					}

	}

	

	capitalCity();

	

	

	

</script>

</head>



<body>





</body>

</html>

WolfShade · 02-12-2013, 09:15 PM

if ((answer == "paris") || (answer == "Paris") || (answer == "PARIS")){
alert("you are correct");
} else {
alert("you are incorrect");
}

Philip M · 02-12-2013, 09:16 PM

if (answer == "paris" || "Paris" || "PARIS"){
should be
if ((answer =="paris") || (answer == "Paris") || answer == "PARIS")) {

But that still does not cover PaRiS etc.

Code:

<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">

function capitalCity() {
var answer = prompt("What is the capital city of France?","");
answer = answer.toLowerCase();
// it would be a good idea to strip leading and/or trailing spaces here!
if (answer == "paris") {
alert ("You are correct");
} 
else {
alert ("You are incorrect");
}
}

capitalCity();

</script>
</head>

<body>


</body>
</html>

Be aware that both prompt() and alert() are nowadays considered obsolete, and they should only be used for testing purposes.

Also be aware that the user can discover the correct answer simply with View Source in his browser.

samyouel · 02-12-2013, 09:30 PM

thanks guys, been a pain this all day!