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JavaScript JavaScript Array Iteration Methods Combining Array Methods Nested Data

suck with the last task

didnt solve this task

app.js
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 = customers.map(customer => customer).map(item => item)
  .reduce((acc , item) => item ,[])
// hobbies should be: ["Bicycling", "Camping", "Guitar", "Reading", "Gardening", "Comics", "Chess", "Legos"]
// Write your code below

2 Answers

Jesus Mendoza
Jesus Mendoza
23,287 Points

Hi Daniel,

For this task you have to return an array of hobbies using the reduce method, it can be done like this

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;

// We use the reduce method in our array of objects
hobbies = customers.reduce((array, customer) => {
    // We assign the new array value with customer.personal.hobbies added to it using concat
    array = array.concat(customer.personal.hobbies);

    return array;
}, []);

so close . thanks !

Jesus Mendoza
Jesus Mendoza
23,287 Points

No problem.

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yes