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

String Concatenation

I am totally missing something when it comes to combining the id and lastName variables. Any suggestions?

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

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

4 Answers

Colin Bell
Colin Bell
29,679 Points

You're concatenating the 'id' and `'lastName' as strings instead of as variables. The way you have it written would set the userName variable to 'id#lastName' no matter what the id and lastName variables were equal to.

You just need to take the quotes off those, but leave the quotes on the '#'. Also, it's asking that both id and lastName be set to uppercase.

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

var userName = id.toUpperCase() +  '#' + lastName.toUpperCase();
Abe Layee
Abe Layee
8,378 Points

By adding quotation mark around the var id and lastName, they become a string instead of a variable. Your goal here is to add the toUpperCase() metho on each id and lastName variable.

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

var userName = id.toUpperCase();
userName = 'id' + '#' + 'lastName'; // the var id + lastName + # all become a string with quotation mark around them

Something like this

var id = "23188xtr";
var lastName = "Smith";
userName = id.toUpperCase() + '#' + lastName.toUpperCase();

Thank you so very much!

Abe Layee
Abe Layee
8,378 Points

You're welcome:D