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JavaScript

Posted by Keith Davis
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Keith Davis
Full Stack JavaScript Techdegree Student 895 Points

Concatenation javascript not working for me

I'm stuck on combining while making strings upperCase as in code below, I've tried several ways, i.e., +=, but can't seem to get this right, any help please?

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

var userName = "Smith".toUpperCase; + ".lastName".toUpperCase();

1 Answer

Erik Nuber
Erik Nuber
20,629 Points 
var id = "23188xtr"; var lastName = "Smith";

var userName = "Smith".toUpperCase; + ".lastName".toUpperCase();

you are close. the lastName variable in your concatination has a period and doesn't need it nor the quotation marks. Ths would be used if you were trying to get a classname of lastname and then would be in brackets. $(".lastname")

lastName.toUpperCase()

Also, with the "smith".toUpperCase you are leaving off the brackets which are necessary since its a function call

"Smith".toUpperCase()

as you are making a userName of SMITH + SMITH I think you are intending to ID+lastName

userName = id.toUpperCase() + lastName.toUpperCase();
Keith Davis
.a{fill-rule:evenodd;}techdegree
Keith Davis
Full Stack JavaScript Techdegree Student 895 Points

Thanks Erik, So obvious when I viewed your reply, thanks that got me on the right track, the full answer I had to give was:

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

userName = id.toUpperCase() + lastName.toUpperCase();

I had been trying to add the '#' in between the 2 var which set my code off wrong as well.