CODEWITHSUNDEEP
javascriptarraysmethods
Gregori Roberts
Gregori Roberts

Reputation: 309

How to convert an array object to an array of arrays?

I have an array object now. The function should return an array of arrays of all object values. Where is the mistake?

const car = [
  {  
    "name":"BMW",
    "price":"55 000",
    "country":"Germany",
    "security":"Hight"
  },
  {  
    "name":"Mitsubishi",
    "price":"93 000", 
    "constructor":"Bar John",
    "door":"3",
    "country":"Japan",
  },
  {  
    "name":"Mercedes-benz",
    "price":"63 000", 
    "country":"Germany",
    "security":"Hight"
  }
 ];

function cars(car){
  return car.map(function(key) {
    return [[key]];
  });
}
console.log(cars(car));

Upvotes: 0

Views: 84

Answers (3)

Nina Scholz
Nina Scholz

Reputation: 386634

You could return the values of the object.

function cars(car){
    return car.map(Object.values);
}

const car = [{ name: "BMW", price: "55 000", country: "Germany", security: "Hight" }, { name: "Mitsubishi", price: "93 000", constructor: "Bar John", door: "3", country: "Japan" }, { name: "Mercedes-benz", price: "63 000", country: "Germany", security: "Hight" }];

console.log(cars(car));
.as-console-wrapper { max-height: 100% !important; top: 0; }

Upvotes: 3

Junius L
Junius L

Reputation: 16132

Change [[key]] to [key]

const car = [
  {  
    "name":"BMW",
    "price":"55 000",
    "country":"Germany",
    "security":"Hight"
  },
  {  
    "name":"Mitsubishi",
    "price":"93 000", 
    "constructor":"Bar John",
    "door":"3",
    "country":"Japan",
  },
  {  
    "name":"Mercedes-benz",
    "price":"63 000", 
    "country":"Germany",
    "security":"Hight"
  }
 ];

function cars(car){
  return car.map(function(key) {
    return [key];
  });
}
console.log(cars(car));

Upvotes: 0

Amardeep Bhowmick
Amardeep Bhowmick

Reputation: 16908

You are wrapping the individual array object in another array so it becomes [[{object}]], simply map to a new array of Object.values of the inner objects.

const car = [
  {  
    "name":"BMW",
    "price":"55 000",
    "country":"Germany",
    "security":"Hight"
  },
  {  
    "name":"Mitsubishi",
    "price":"93 000", 
    "constructor":"Bar John",
    "door":"3",
    "country":"Japan",
  },
  {  
    "name":"Mercedes-benz",
    "price":"63 000", 
    "country":"Germany",
    "security":"Hight"
  }
 ];

function cars(car){
  return Array.from(car, Object.values)
}
console.log(cars(car));

Upvotes: 0

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