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 Array Manipulation Practice map()

Posted by Khumoyunmirzo Nosirov
Khumoyunmirzo Nosirov
8,689 Points

what is wrong here?

Use the map method on the daysOfWeek array, creating a new array of abbreviated week days. Each abbreviated string should be the first three letters of the long version in daysOfWeek. Store the new array in the variable abbreviatedDays.

app.js 
const daysOfWeek = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
let abbreviatedDays = daysOfWeek.map(strings => strings.slice(0, 3));

// abbreviatedDays should be: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]
// Write your code below

2 Answers

Steven Parker
Steven Parker
231,272 Points
Steven Parker
Steven Parker
231,272 Points

You're really close! The error message was trying to give you a hint: "Bummer: It looks like you changed or removed the provided code."

Just move your code down below the line that says "Write your code below", and you'll pass the challenge.

Khumoyunmirzo Nosirov
Khumoyunmirzo Nosirov
8,689 Points
Khumoyunmirzo Nosirov
Khumoyunmirzo Nosirov
8,689 Points

how , I tried many ways ,

Steven Parker
Steven Parker
231,272 Points
Steven Parker
Steven Parker
231,272 Points

Your code is actually perfect, but the challenge doesn't want you to change the original lines. Just put the new stuff below that last comment.