Javascript check if array all item exist in JSON array

Question

Compare all array item into JSON array object

const filterArray = ['Ford', 'Fiat'];

const showrooms = [{
    "Name": "Mark Auto",
    "Location": "Delhi",
    "Cars": ['Ford', 'BMW', 'Fiat']
  },
  {
    "Name": "Cardekho",
    "Location": "Mumbai",
    "Cars": ['Ford', 'Fiat']
  },
  {
    "Name": "Tata Arena",
    "Location": "Pune",
    "Cars": ['Ford', 'BMW']
  },
  {
    "Name": "Nexa Showroom",
    "Location": "Noida",
    "Cars": ['Suzuki', 'Ford', 'Tata', 'Fiat']
  }
]

I write code to filter data but not working.

const result = this.showrooms.filter(c=> this.filterArray.includes(c.Cars)).map(a=>a.Name);

Desired Output

['Mark Auto', 'Cardekho', 'Nexa Showroom']

Answer 1

You could use every to check if every showroom's cars include all of the cars in the filterArray

const filterArray = ['Ford', 'Fiat'];

const showrooms = [
  {
    Name: "Mark Auto",
    Location: "Delhi",
    Cars: ["Ford", "BMW", "Fiat"],
  },
  {
    Name: "Cardekho",
    Location: "Mumbai",
    Cars: ["Ford", "Fiat"],
  },
  {
    Name: "Tata Arena",
    Location: "Pune",
    Cars: ["Ford", "BMW"],
  },
  {
    Name: "Nexa Showroom",
    Location: "Noida",
    Cars: ["Suzuki", "Ford", "Tata", "Fiat"],
  },
];

const res = showrooms
  .filter((s) => filterArray.every((c) => s.Cars.includes(c)))
  .map((s) => s.Name);

console.log(res);