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![Humoyunmirzo Nosirov](https://secure.gravatar.com/avatar/b05ca1e00e15f20aac7bfe9f7c9b68ce?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Humoyunmirzo Nosirov
Courses Plus Student 5,154 PointsNEED SOME HELP
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.
const daysOfWeek = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
let abbreviatedDays = daysOfWeek.map();
// abbreviatedDays should be: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]
// Write your code below
3 Answers
![KRIS NIKOLAISEN](https://secure.gravatar.com/avatar/65d74a723997b41a80d2d909c6e06960?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
KRIS NIKOLAISEN
54,969 PointsUsing Shlomi's suggestion: try:
abbreviatedDays = daysOfWeek.map(day => day.substr(0,3));
![Shlomi Bittan](https://secure.gravatar.com/avatar/469902298de58725f6ac06a432ab2db1?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Shlomi Bittan
6,718 PointsHi Humoyunmirzo Nosirov, In the call for map you need to pass a function. Something like this: let abbreviatedDays = daysOfWeek.map(day => day.substr(0,2));
![Humoyunmirzo Nosirov](https://secure.gravatar.com/avatar/b05ca1e00e15f20aac7bfe9f7c9b68ce?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Humoyunmirzo Nosirov
Courses Plus Student 5,154 Pointsit is not working
KRIS NIKOLAISEN
54,969 PointsKRIS NIKOLAISEN
54,969 PointsTry using the slice method