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JavaScript JavaScript Basics Working with Strings Combine and Manipulate Strings

sierra giffin
sierra giffin
739 Points
Posted by sierra giffin
sierra giffin
739 Points

Converting a string stored in a variable to upper case fails in a variety of methods that should work.

we were able to get a answer 3 different ways within the w3schools console, but team treehouse says its wrong each way

app.js 
let firstName = "sierra";
let lastName = "giffin";
let role = "developer.toUpperCase()";
msg =  firstName + ' ' + lastName + ':' + role + ':';

4 Answers

Tim Oltman
Tim Oltman
7,730 Points
Tim Oltman
Tim Oltman
7,730 Points

Hi Sierra,

As Mohammad is pointing out, you need to call the method toUpperCase() on a string. In your code it is simply part of the string and the browser won't recognize it as a function that needs to be performed.

Here is another way you might structure your code:

let firstName = "sierra";
let lastName = "giffin";
let role = "developer".toUpperCase();
msg =  firstName + ' ' + lastName + ':' + role;
Mohammad Azawi
Mohammad Azawi
Courses Plus Student 5,631 Points

You missed to declare your (msg) variable.

let msg = "the rest..";
Mohammad Azawi
Mohammad Azawi
Courses Plus Student 5,631 Points

@ Jelena Feliciano, I don't know if you mean me or not , but thanks any way.

Mohammad Azawi
PLUS
Mohammad Azawi
Courses Plus Student 5,631 Points
Mohammad Azawi
Mohammad Azawi
Courses Plus Student 5,631 Points 
let firstName = "sierra";
let lastName = "giffin";
let role = "developer";
let msg =  `${firstName} ${lastName}: ${role.toUpperCase()}`;
ch.ienwie suh
PLUS
ch.ienwie suh
Courses Plus Student 1,143 Points
ch.ienwie suh
ch.ienwie suh
Courses Plus Student 1,143 Points

tried all 3 way you provided and it still dint't work. don't know how to make it work.

Mohammad Azawi
Mohammad Azawi
Courses Plus Student 5,631 Points

How come my code isn't working ? I solved the challenge before posting my solution.

sierra giffin
sierra giffin
739 Points
sierra giffin
sierra giffin
739 Points

I believe that there is a bug, do you know how to get help from TTH staff?

Tim Oltman
Tim Oltman
7,730 Points
Tim Oltman
Tim Oltman
7,730 Points

Hi Sierra,

I think I figured out your problem. You need to pay attention to the HINT. The spaces really matter here. There should be a space between the colon and the role.

The following code worked for me.

let firstName = "Tim";
let lastName = "Oltman";
let role = 'developer';
let msg = firstName + " " + lastName + ": " + role.toUpperCase();