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JavaScript JavaScript Basics Working with Strings Combine and Manipulate Strings

jonathan machuca
seal-mask
.a{fill-rule:evenodd;}techdegree
jonathan machuca
Full Stack JavaScript Techdegree Student 506 Points
Posted by jonathan machuca
.a{fill-rule:evenodd;}techdegree
jonathan machuca
Full Stack JavaScript Techdegree Student 506 Points

cannot read property "1" null

still don"t know what it could be

app.js 
let firstName = "jonathan" ;
let lastName = "machuca" ;
let role = 'developer';
let msg = firstName + " " lastName + ": " role ;

2 Answers

Rupa Chakma
Rupa Chakma
8,989 Points
Rupa Chakma
Rupa Chakma
8,989 Points

Make sure you concat the strings properly in line 4

Jason Larson
Jason Larson
8,353 Points
Jason Larson
Jason Larson
8,353 Points

While Joy Ahmed is correct, I'm not sure if you spotted the mistakes since you didn't spot them on your own initially. Be sure to include the plus sign (+) between each section of your concatenated strings. You have one after your variables, before the space and colon space, but you didn't put one after the spaces:

//wrong
let msg = firstName + " " lastName + ": " role ;

//right
let msg = firstName + " " + lastName + ": " + role;

Also, as a matter of style (and to save yourself potential headache later), you should not put the extra space at the end of your code before the semicolon.