Help me solve these question to just output the hobbies

Question

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.map(hobby => hobby.hobbies))
.reduce ((arr, hobbies) => [...arr, ...hobbies], []);
//console.log(hobbies);

Answer 1

hobbies = customers
.map(customer => customer.personal.hobbies)
.reduce ((arr, hobbies) => [...arr, ...hobbies], []);

or just one reduce:

hobbies = customers
.reduce ((arr, customer) => [...arr, ...customer.personal.hobbies], []);

Answer 2

Thanks for the help