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Wenwei Lu
10,897 PointsWhy I am wrong?
var id = "23188xtr"; var lastName = "Smith"; var id = id.toUpperCase(); var userName = id; var lastName = lastName.toUpperCase(); var userName += "#"+lastName;
var id = "23188xtr";
var lastName = "Smith";
var id = id.toUpperCase();
var userName = id;
var lastName = lastName.toUpperCase();
var userName += "#"+lastName;
<!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>
2 Answers
Steven Parker
231,007 PointsYou can only declare each variable once.
So after you have declared it (using "var"), you can assign it again later but you won't use "var" anymore. So just remove that from the last 2 lines:
var id = "23188xtr";
var lastName = "Smith";
var id = id.toUpperCase();
var userName = id;
lastName = lastName.toUpperCase();
userName += "#"+lastName;
Garett Haight
16,632 PointsThe var keyword is only used when declaring a variable for the first time.
var id = "23188xtr";
var lastName = "Smith";
var userName = id.toUpperCase() + "#" + lastName.toUpperCase();