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

Finally, add a # symbol and lastName in uppercase to the end of the userName string. The final value of userName is "

need help finishing this of Ive tried all possible scenarios I can think off

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

var userName = id.toUpperCase() += lastName.toUpperCase();
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>JavaScript Basics</title>
<script src="app.js"></script>

Hi Jason,

I think I can help you out. I believe your issue lies with the += operator you're using. += is an assignment operator. In other words, JavaScript is expecting whatever value is to the right of += to be assigned to whatever is left of the +=. Whatever is to the left of an assignment operator, must be a variable. So in other words, what's happening above is you're unintentionally assigning the value of lastName.toUpperCase(); to id.toUpperCase(). That will totally cause problems since id.toUpperCase() is a method call on a string and not a variable where you can store things.

One way to solve this is by using concatenation by just using a + instead of a += like this:

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

This will concatenate id, the # and lastname into a string and assign it to userName.

Alternatively, if you'd like to continue using the assignment operator +=, you just have to do it one piece at a time so that the variable userName is always on the left of the +=.

Like this:

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

1 Answer

Ari Misha
Ari Misha
19,323 Points

Hiya Jason! You literally have to add a "#" between upper cased "id" and uppercased "lastName" variable. Here is my code :

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

var userName = id.toUpperCase(); //task 1
userName = id.toUpperCase() + "#" + lastName.toUpperCase(); //task 2
//"userName" outputs "23188XTR#SMITH"