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!

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 JavaScript Array Iteration Methods Combining Array Methods Working with Objects in Arrays

userObject is not defined

I've copied and paste the reduce method in the video.

const userObject= users.reduce((userObject, user) =>{ usersObject[user.name]=user.age; return usersObject; },{}); But my browser end up with the error "userObject is not defined".

It happens even if I change the name to something else.

1 Answer

Hi Emil!

Maybe it's because:

You are using usersObject instead of userObject. Try this code out:

const userObject = users.reduce((userObject, user) => {
  userObject[user.name] = user.age;
  return userObject;
}, {});

I hope it works!