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JavaScript JavaScript Basics Working with Strings Combine and Manipulate Strings

Nathan Fite
Nathan Fite
416 Points

role.toUpperCase(); what gives?

Can someone spot the error when I try to capitalize "DEVELOPER" at the end of my msg? I keep getting a null error.

let firstName = "Nathan";
let lastName = "Fite";
let role = 'developer';
let msg = firstName + ' ' + lastName + ': ' + role;
let msg = firstName + ' ' + lastName + ': ' + role.toUpperCase();
Tomas Schaffer
Tomas Schaffer
11,569 Points

you are dclaring second time the same variable in same scope. You may rewrite the let msg like this:

msg = firstName + ' ' + lastName + ': ' + role.toUpperCase();

variable already exists so you cant create the same variable twice.

or you can combine string like this alsowith template literals:

msg = firstName lastName: ${role.toUpperCase()}