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

Posted by Christopher Flores
Christopher Flores
6,898 Points

Just not getting it...

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

I'm typing all kinds of stuff, even 'id' + 'lastName'

23188xtr#Smith - without the # - #lastName - ETC.

JavaScript is finicky

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

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

Ruben Ponce
seal-mask
.a{fill-rule:evenodd;}techdegree
Ruben Ponce
Full Stack JavaScript Techdegree Student 12,035 Points
Ruben Ponce
.a{fill-rule:evenodd;}techdegree
Ruben Ponce
Full Stack JavaScript Techdegree Student 12,035 Points

It's trying to show you how to concatenate a string. So you join two strings together with the + operator. It wants you to have a pound sign between id and lastname. So essentially you have to 'add' all three of those values.

edit: Also, '#lastName' will be printed out as literally '#lastName'. You need to use the variable, lastName and the string of '#'.

Christopher Flores
Christopher Flores
6,898 Points
Christopher Flores
Christopher Flores
6,898 Points

I'm not getting it

after (id.toUpperCase()) I'm writing:

  • 'id' + '#' + 'lastName';

'id' + 'lastName';

'id' + '#' +'lastName';

I'm not getting it. Am I putting too many + or not enough spaces or too many spaces?

Ruben Ponce
.a{fill-rule:evenodd;}techdegree
Ruben Ponce
Full Stack JavaScript Techdegree Student 12,035 Points

You're writing strings instead of variables that hold strings. if var name = 'Christopher'

name === 'name'.//false

name === 'Christopher'//true

'name'==='name'//true

Christopher Flores
Christopher Flores
6,898 Points
Christopher Flores
Christopher Flores
6,898 Points

Is it 'id' + '#' + 'lastName'

or

'id' + '#lastName' ???

Ruben Ponce
.a{fill-rule:evenodd;}techdegree
Ruben Ponce
Full Stack JavaScript Techdegree Student 12,035 Points

It’s id + ‘#’ + lastName with toUpperCase on the variables

Christopher Flores
Christopher Flores
6,898 Points
Christopher Flores
Christopher Flores
6,898 Points

Yeah, I actually just figured it out

I wrote:

  • '#' + (lastName.toUpperCase)); and it worked

thanks Ruben