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Start your free trialJoseph Chauvin
Full Stack JavaScript Techdegree Student 12,029 PointsI don't understand this question at all and this whole course has just been weird to me
I'm not sure why this code doesn't work for the challenge
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( person => person.personal.map( person => person.hobbies ))
.reduce( (arr, person) => [ ...arr, ...person], []);
2 Answers
Seth Kroger
56,413 PointsThe trouble you're having is that person.personal
is an object, not an array so there is no map function. Since there is only one hobbies
entry in personal
the map part can just be:
.map( person => person.personal.hobbies )
mc24
Courses Plus Student 3,041 Pointsconst 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[0].personal.hobbies
hobbies += customers[1].personal.hobbies
hobbies += customers[2].personal.hobbies
console.log(Array(hobbies));
I am still at the Javascript basics, just wanted to solve that for me. I dont know if this method helps you, but Hobbies is now that what it should be =).
Joseph Chauvin
Full Stack JavaScript Techdegree Student 12,029 PointsI have to use the reduce method :/