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JavaScript JavaScript Basics Working with Strings Combine and Manipulate Strings

Posted by Juan Pablo Castrillon
Juan Pablo Castrillon
863 Points

I keep getting "cannot read property '1' of null.

I think my code is correct but I keep getting the error. Any help?

app.js 
let firstName;
let lastName;
let role = 'developer';
let firstName = 'JP';
let lastName = 'Castrillon';

1 Answer

Stefan Caky
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Stefan Caky
Full Stack JavaScript Techdegree Graduate 14,879 Points
Stefan Caky
.a{fill-rule:evenodd;}techdegree seal-36
Stefan Caky
Full Stack JavaScript Techdegree Graduate 14,879 Points

Hi. Could you please attach any code where you get cannot read property '1' of null? Because what you attached is only defined variables. Thank you :)