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JavaScript JavaScript Basics (Retired) Storing and Tracking Information with Variables Using String Methods

Marlon Shaw
Marlon Shaw
2,329 Points
Posted by Marlon Shaw
Marlon Shaw
2,329 Points

add '#' between id and lastName

var id = "23188xtr"; var lastName = "Smith";

var userName = id += '#' + lastName;

userName.toUpperCase(); alert(userName);

app.js 
var id = "23188xtr";
var lastName = "Smith";

var userName = id += '#' + lastName;

userName.toUpperCase();
alert(userName);
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>

3 Answers

Marcus Parsons
Marcus Parsons
15,719 Points

Hi Marlon,

There are a few ways to go about this challenge. Your way was almost correct except for the = sign and that you didn't store the result of userName.toUpperCase() back into userName. Just calling userName.toUpperCase() doesn't really do anything by itself; userName isn't permanently converted into the upper case format unless you assign it the result of calling that method. 

var id = "23188xtr";
var lastName = "Smith";

//removed = sign, only need + for concatenation
var userName = id + '#' + lastName;

//set userName equal to itself in upper case format
//results in 23188XTR#SMITH
userName = userName.toUpperCase();
Hugo Paz
Hugo Paz
15,622 Points
Hugo Paz
Hugo Paz
15,622 Points

Hi Marlon,

You have an equals sign (=) here:

var userName = id += '#' + lastName;

Just remove it and youll be fine

Marlon Shaw
Marlon Shaw
2,329 Points
Marlon Shaw
Marlon Shaw
2,329 Points

I have been doing that but error still says "you did not add "#" character between id and lastName"

var id = "23188xtr"; var lastName = "Smith";

var userName = id + '#' + lastName;

userName.toUpperCase(); alert(userName);

Marlon Shaw
Marlon Shaw
2,329 Points
Marlon Shaw
Marlon Shaw
2,329 Points

Okay, this seemed to work.

var id = "23188xtr"; var lastName = "Smith";

var userName = id.toUpperCase(); userName = userName + '#' + lastName.toUpperCase();

alert(userName);