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 JavaScript Array Iteration Methods Combining Array Methods Working with Objects

Posted by Philip Rodrigues
Philip Rodrigues
14,228 Points

I don't understand why this challenge isn't accepting my code... I copied it into the workspace and it seemed to work...

const authors = [ { firstName: "Beatrix", lastName: "Potter" }, { firstName: "Ann", lastName: "Martin" }, { firstName: "Beverly", lastName: "Cleary" }, { firstName: "Roald", lastName: "Dahl" }, { firstName: "Lewis", lastName: "Carroll" } ]; let fullAuthorNames;

// fullAuthorNames should be: ["Beatrix Potter", "Ann Martin", "Beverly Cleary", "Roald Dahl", "Lewis Carroll"] // Write your code below

fullAuthorsNames = authors.map(author => ${author.firstName} ${author.lastName});

app.js 
const authors = [
  { firstName: "Beatrix", lastName: "Potter" },
  { firstName: "Ann", lastName: "Martin" },
  { firstName: "Beverly", lastName: "Cleary" },
  { firstName: "Roald", lastName: "Dahl" },
  { firstName: "Lewis", lastName: "Carroll" }
];
let fullAuthorNames;

// fullAuthorNames should be: ["Beatrix Potter", "Ann Martin", "Beverly Cleary", "Roald Dahl", "Lewis Carroll"]
// Write your code below

fullAuthorsNames = authors.map(author => `${author.firstName} ${author.lastName}`);

1 Answer

Steven Parker
Steven Parker
229,644 Points
Steven Parker
Steven Parker
229,644 Points

You just have a typo/spelling issue.

The challenge is expecting to result in the variable "fullAuthorNames" (with one "s"), but your code is assigning a variable "fullAuthorsNames" (with two "s" characters).

Philip Rodrigues
Philip Rodrigues
14,228 Points

Doh!! Thanks Steven :)