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

Stuck, have researched concepts but don't understand.

Instructions are: add a # symbol and lastName in uppercase to the end of the userName string. The final value of userName is "23188XTR#SMITH".

I'm struggling to understand the concepts here

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

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

2 Answers

Thomas Tilton-Heylin
Thomas Tilton-Heylin
12,098 Points
var id = "23188xtr";
var lastName = "Smith";

var userName = id.toUpperCase() + '#' + lastName.toUpperCase()
Antonio De Rose
Antonio De Rose
20,884 Points
var id = "23188xtr";
var lastName = "Smith";

var userName = id.toUpperCase(); //at this moment, userName variable gives 23188XTR, id is holding 23188xtr 
var userName = id + lastName.toUpperCase(); // now you are overwriting the userName variable from 23188XTR to 23188xtr, and concatenating the lastName which is Smith, which would result in -> 23188xtrSMITH

I did the exact same thing ,but it keeps showing " Bummer: The userName variable is "23188xtrSMITH" not "23188XTR#SMITH"."