How to delete an item in object?

Question

[
  {
    "country": "Afghanistan",
    "products": {
      "beer": 2235,
      "wine": 2274,
      "juices": 7
    }
  },
  {
    "country": "Asia",
    "products": {
      "beer": 2362,
      "wine": 20204,
      "juices": 238
    }
  },
  {
    "country": "Italy",
    "products": {
      "beer": 267,
      "wine": 459,
      "juices": 3
    }
  },
  {
    "country": "North America",
    "products": {
      "beer": 2367,
      "wine": 4359,
      "juices": 33
    }
  }
]

I have the above object and I want to remove both "Asia" and "North America", along with the whole row of data associated with them. How do I go about it?

Optional: What about if I want to remove all countries that have less than 500 beer products?

Please visit [help], take [tour] to see what and [ask]. Do some research, search for related topics on SO; if you get stuck, post a [mcve] of your attempt, noting input and expected output. — mplungjan, May 04 '20 at 11:19
Does this answer your question? [How do I remove a property from a JavaScript object?](https://stackoverflow.com/questions/208105/how-do-i-remove-a-property-from-a-javascript-object) — Run_Script, May 04 '20 at 11:23

score 2 · Answer 1 · answered May 04 '20 at 11:16

You can use filter

var countries = [
    { "country": "Afghanistan", "products": { "beer": "2235", "wine": 2274, "juices": 7 } },
    { "country": "Asia", "products": { "beer": "2362", "wine": 20204, "juices": 238 } },
    { "country": "Italy", "products": { "beer": "267", "wine": 459, "juices": 3 } },
    { "country": "North America", "products": { "beer": "2367", "wine": 4359, "juices": 33 } }
]


var result = countries.filter(({country}) => country !== 'North America' && country !=='Asia' );
console.log(result)

score 2 · Accepted Answer · answered May 04 '20 at 11:17

You can use Array.filter() to achieve this.

var countries = [
{ "country": "Afghanistan", "products": { "beer": "2235", "wine": 2274, "juices": 7 }},
{ "country": "Asia", "products": { "beer": "2362", "wine": 20204, "juices": 238 }},
{ "country": "Italy", "products": { "beer": "267", "wine": 459, "juices": 3 }},
{ "country": "North America", "products": { "beer": "2367", "wine": 4359, "juices": 33 }}
]

// without Asia and North America
var newCountries = countries.filter(({country}) => country !== 'Asia' && country !== 'North America');

console.log(newCountries);

// with beer products more that 500
var moreBeerCountries = countries.filter(({products}) => products.beer > 500);

console.log(moreBeerCountries);

score 2 · Answer 3 · edited May 04 '20 at 11:30

If you want to remove countries that have less than 500 beer products

var countries = [
    { "country": "Afghanistan", "products": { "beer": "2235", "wine": 2274, "juices": 7 } },
    { "country": "Asia", "products": { "beer": "2362", "wine": 20204, "juices": 238 } },
    { "country": "Italy", "products": { "beer": "267", "wine": 459, "juices": 3 } },
    { "country": "North America", "products": { "beer": "2367", "wine": 4359, "juices": 33 } }
]
const filtered = countries.filter((country) => parseInt(country.products.beer) > 500)

console.info(filtered)

score 0 · Answer 4 · answered May 04 '20 at 11:24

0

Use simple while loop and splice function.

var i = 0;
while (i < countries.length) {
    if(countries[i].products.beer < 500) {
        countries.splice(i, 1);
    } else {
        ++i;
    }
}

answered May 04 '20 at 11:24

Tito

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How to delete an item in object?

4 Answers4