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

Posted by Hannah Elliott
Hannah Elliott
11,001 Points

I have no idea what I'm doing.

I keep watching the video, but apparently I'm missing something important.

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

var userName.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>

3 Answers

jason chan
jason chan
31,009 Points
jason chan
jason chan
31,009 Points 
var id = "23188xtr";
var lastName = "Smith";
// have id variable string to upper case
var userName = id.toUpperCase();
// we are going to concatenate "think of it as adding the strings" together or adding letter together then we wrap in parens // to make them both uppercase
userName = (id + "#" + lastName).toUpperCase();

I hope that helps. There is always more than one way of do it. This is my solution.

Think of variables of storage batteries. We are storing information in strings to use later.

Jake Lundberg
Jake Lundberg
13,965 Points
Jake Lundberg
Jake Lundberg
13,965 Points

You need to assign the uppercase version of id to username...

var username = id.toUpperCase();
Daniel Crews
Daniel Crews
14,008 Points
Daniel Crews
Daniel Crews
14,008 Points

The task is to assign an uppercase version of the id variable to userName. You've selected the correct string method, but you are calling it on a variable that doesn't exist. The first step is to call the toUpperCase method on id:

id.toUpperCase();

Then assign the result to userName:

var userName = id.toUpperClass();