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JavaScript JavaScript Array Iteration Methods Array Manipulation Practice map()

Why My code is not working here :( Please 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.

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

1 Answer

Hi Hanwen!

I think your biggest issue is not assigning the value to dayAbbreviations on a separate line.

Your code, as written, would work in the real world, though.

This passes:

const daysOfWeek = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
let abbreviatedDays;

// abbreviatedDays should be: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]
// Write your code below
abbreviatedDays = daysOfWeek.map(dayName => dayName.slice(0, 3));

I hope that helps.

Stay safe and happy coding!

Works now, thank you Peter