Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript Practice Object Interaction Starting with Some Methods Demo: Add Patrons and Books to the Library Class

Richard Preske
PLUS
Richard Preske
Courses Plus Student 4,356 Points
Posted by Richard Preske
Richard Preske
Courses Plus Student 4,356 Points

library.addBook is not a function error

https://w.trhou.se/789981lzjd

Why does it say not a function error?

2 Answers

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

It looks like the "addBook" function was put into "Patron.js" instead of "Library.js".