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
Aziz Kemal HOSCAN
Full Stack JavaScript Techdegree Graduate 16,113 PointsAbout reduce method
Well I am following the previous examples but still cant solve the problem. I first use map method to get the hobbies arrays and then use reduce method to flatten arrays into one big array as we saw in the previous examples but I get an error of innerhobbie is not iterable. I believe that after the map method I get an array of arrays and then use reduce on that array of arrays.
Please help
const customers = [
{
name: "Tyrone",
personal: {
age: 33,
hobbies: ["Bicycling", "Camping"]
}
},
{
name: "Elizabeth",
personal: {
age: 25,
hobbies: ["Guitar", "Reading", "Gardening"]
}
},
{
name: "Penny",
personal: {
age: 36,
hobbies: ["Comics", "Chess", "Legos"]
}
}
];
let hobbies;
// hobbies should be: ["Bicycling", "Camping", "Guitar", "Reading", "Gardening", "Comics", "Chess", "Legos"]
// Write your code below
hobbies = customers.map(customer => customer.hobbies).reduce((arr, innerhobbie) => [...arr, ...innerhobbie], []);
1 Answer
Sean T. Unwin
28,690 PointsIn the map() refactor to customer => customer.personal.hobbies -- forgot to add .personal before .hobbies.
Aziz Kemal HOSCAN
Full Stack JavaScript Techdegree Graduate 16,113 PointsAziz Kemal HOSCAN
Full Stack JavaScript Techdegree Graduate 16,113 PointsThanks Sean It solved the problem :)