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JavaScript JavaScript Basics (Retired) Making Decisions with Conditional Statements Introducing Conditional Statements

Posted by Marie Kolanda
Marie Kolanda
3,658 Points

what is wrong with this?

Not sure what is wrong witth this code:

var answer = prompt('What is the best programming language?');

if ( answer.toUpperCase() === 'JAVASCRIPT' ) { alert('You are correct'); }

getting type error: Null

app.js 
var answer = prompt('What is the best programming language?');

if ( answer.toUpperCase() === 'JAVASCRIPT' ) {
  alert('You are correct');
}
index.html 
<!DOCTYPE HTML>
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>JavaScript Basics</title>
</head>
<body>
<script src="app.js"></script>
</body>
</html>

1 Answer

Allison Hanna
Allison Hanna
36,222 Points
Allison Hanna
Allison Hanna
36,222 Points

While your code works correctly, it appears the quiz is looking for something very specific at 2/3. It wants you to alert "JavaScript" instead of toUpperCase() or toLowerCase().

var answer = prompt('What is the best programming language?');

if (answer === 'JavaScript') {
  alert('You are correct');
}

and then, again without accounting for case in 3/3,

var answer = prompt('What is the best programming language?');

if (answer === 'JavaScript') {
  alert('You are correct');
} else {
  alert('JavaScript is the best language!');
}

What you wrote works, but the quiz (more specifically, the test behind it) is looking for a particular match. Keep it up, looks like you're doing great.