CODEWITHSUNDEEP
javascriptarrayssorting
ukaric
ukaric

Reputation: 428

Sort Array of Objects by Nested Key Value

I have originalArray that contains objects. How would I go around sorting arrays inventory array by key value short:

var originalArray = [
  {
    name: 'Store1',
    inventory: [
      { name: 'Oranges', qt: { short: 11, long: 3, med: 9 } },
      { name: 'Mango', qt: { short: 3, long: 91, med: 3 } },
      { name: 'Kiwi', qt: { short: 2, long: 91, med: 3 } },
      { name: 'Papaya', qt: { short: 8, long: 91, med: 3 } }
    ]
  },
  {
    name: 'Store2',
    inventory: [
      { name: 'Pizza', qt: { short: 31, long: 11, med: 23 } },
      { name: 'Burger', qt: { short: 1, long: 11, med: 23 } },
      { name: 'IceCream', qt: { short: 111, long: 11, med: 323 } }
    ]
  }
];

Desired output is:

var sorted = [
  {
    name: 'Store1',
    inventory: [
      { name: 'Kiwi', qt: { short: 2, long: 91, med: 3 } },
      { name: 'Mango', qt: { short: 3, long: 91, med: 3 } },
      { name: 'Papaya', qt: { short: 8, long: 91, med: 3 } },
      { name: 'Oranges', qt: { short: 11, long: 3, med: 9 } }
    ]
  },
  {
    name: 'Sotre2',
    inventory: [
      { name: 'Burger', qt: { short: 1, long: 11, med: 23 } },
      { name: 'Pizza', qt: { short: 31, long: 11, med: 23 } },
      { name: 'IceCream', qt: { short: 111, long: 11, med: 323 } }
    ]
  }
];

I don't need anything but inventory array sorted by short value.

All the items of inventory array are sorted in dsc order. Performance is not an issue nor is language spec limit only limitation is that I can not use external libraries.

Is there a sane way of doing this or I need to pluck inventory into intermediary variable sort it there and create new array of objects with inventory sorted.

Upvotes: 2

Views: 4552

Answers (1)

Igor
Igor

Reputation: 15893

var originalArray = [
  {
    name: 'Store1',
    inventory: [
      { name: 'Oranges', qt: { short: 11, long: 3, med: 9 } },
      { name: 'Mango', qt: { short: 3, long: 91, med: 3 } },
      { name: 'Kiwi', qt: { short: 2, long: 91, med: 3 } },
      { name: 'Papaya', qt: { short: 8, long: 91, med: 3 } }
    ]
  },
  {
    name: 'Store2',
    inventory: [
      { name: 'Pizza', qt: { short: 31, long: 11, med: 23 } },
      { name: 'Burger', qt: { short: 1, long: 11, med: 23 } },
      { name: 'IceCream', qt: { short: 111, long: 11, med: 323 } }
    ]
  }
];

for (var i = 0; i < originalArray.length; i++) {
  originalArray[i].inventory.sort(function(a, b) { return a.qt.short - b.qt.short; });
}

console.log(originalArray);

Upvotes: 9

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