How to sort array objects base on two properties

Question

Hi i have an array of objects

cards = [
{ Asset: "2C.jpg",
  CardName: "2C",
  CardPlayed: 0,
  Playbell: 0,
  PlayerName: "player1",
  Rank: 2,
  Suit: "C"
},
{ Asset: "9S.jpg",
  CardName: "9S",
  CardPlayed: 0,
  Playbell: 0,
  PlayerName: "player2",
  Rank: 9,
  Suit: "S"
},
{ Asset: "6D.jpg",
  CardName: "6D",
  CardPlayed: 0,
  Playbell: 0,
  PlayerName: "player1",
  Rank: 6,
  Suit: "D"
}];

and i need to sort those objects base on Suit property but only for the object that have the PlayerName property value equal to "player1" and many thanks in advance for any help.

Guffa · Accepted Answer · 2014-12-02 17:02:24Z

3

To sort the array on PlayerName and then Suit:

cards.sort(function(x, y){
  return (
    x.PlayerName < y.PlayerName ? -1 :
    x.PlayerName > y.PlayerName ? 1 :
    x.Suit < y.Suit ? -1 :
    x.Suit > y.Suit ? 1 :
    0
  );
});

answered Dec 2, 2014 at 17:02

Guffa

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Comments

Juank · Accepted Answer · 2014-12-02 17:05:12Z

0

var filtered = cards.filter(function(card){
    return card.PlayerName === "player1";
});

var sorted = filtered.sort(function(a,b){
  if (a.Suit > b.Suit) {
    return 1;
  }
  if (a.Suit < b.Suit) {
    return -1;
  }
  // a must be equal to b
  return 0;
});

According to MDN filter doesn't work on ie8 and below, you could use a polyfill as stated on https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Array/filter, or you could iterate over all items and filter them manually like this:

var filtered = [];
for (var i in cards){
    if (cards[i].PlayerName === "player1"){
        filtered.push(cards[i]);
    }
}

// and then sort it like before

edited Dec 2, 2014 at 17:05

answered Dec 2, 2014 at 16:54

Juank

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1 Comment

M. Page Over a year ago

Might be useful to give alternative of filter for EcmaScript < 5

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