Question 51828 in Javascript Question posted in
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Get filtered array of objects from array of values – Javascript

I’m trying to filter the inventory array based on the values I have in the cars array. The result currently I’m getting is [].

const cars = ['s', 'y']

const inventory = [{
  desc: 'Tesla',
  customers: [{
    model: 's',
    name: 'John'
  }]
}, {
  desc: 'Audi',
  customers: [{
    model: 'q3',
    name: 'Doe'
  }]
}]

const result = inventory.filter((val) => {
cars.includes(val.customers.map((val) => val.model))
})

console.log(result)

The result what I’m expecting is below. Could anyone please help?

[{
  desc: 'Tesla',
  customers: [{
    model: 's',
    name: 'John'
  }]
}]
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2

Answers


  1. 0

    The issue is with the filter() function. The map() function inside includes() returns an array, so you need to use the some() function to check if any of the customer models match the cars array.

    const cars = ['s', 'y']

const inventory = [{
  desc: 'Tesla',
  customers: [{
    model: 's',
    name: 'John'
  }]
}, {
  desc: 'Audi',
  customers: [{
    model: 'q3',
    name: 'Doe'
  }]
}]

const result = inventory.filter((val) => {
  return val.customers.some((customer) => cars.includes(customer.model))
})

console.log(result)
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  2. 0

    You can use filter with reduce with and includes:

    const cars = ['s', 'y']

const inventory = [{
  desc: 'Tesla',
  customers: [{
    model: 's',
    name: 'John'
  }]
}, {
  desc: 'Audi',
  customers: [{
    model: 'q3',
    name: 'Doe'
  }]
}]

const result = inventory.filter((item) =>
  item.customers.reduce((acc, curr) => acc || cars.includes(curr.model), false))

console.log(result)
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