double sortは重複を返します

Question

以下にコピーされる関数は、最初にパラメータ1、次に2でzオブジェクトをソートすることです。オブジェクトパラメータが非一意ではない整数の重複オブジェクトインスタンスを返します。この機能について根本的に間違っているのは何ですか？ if（s）の後にはreturn 0;で動作しません。 ありがとう！より詳細に

z=[{object1},{object2},{object3},...,{objectN}]; 
z.sort(function(x,y){ 
    if(x.param1-y.param1>0){return -1}; 
    if(x.param1-y.param1<0){return 1}; 
    if(x.param1-y.param1==0){ 
     if(x.param2-y.param2>0){return -1}; 
     if(x.param2-y.param2<0){return 1}; 
    }; 

}); 

zは次のようになります

z=[{"level":0,"order":0,"t":"section","a":{"class":"ro s-14 m-3"}}, 
    {"level":1,"order":0,"t":"h1","a":{"class":"tx-1 s-35"},"x":"This is a text"}, 
    {"level":1,"order":1,"t":"div","a":{"class":"tx-0 m-3"}}, 
     {"level":2,"order":0,"t":"h2","a":{"class":"tx-0 s-18"},"x":"This is a text"}, 
     {"level":2,"order":1,"t":"h3","a":{"class":"tx-0 s-14 fw-3"}}, 
      {"level":3,"order":0,"t":"li","x":"This is a text"}, 
      {"level":3,"order":1,"t":"li","x":"This is a text"}, 
      {"level":3,"order":2,"t":"li","x":"This is a text"}, 
      {"level":3,"order":3,"t":"li","x":"This is a text"}, 
      {"level":3,"order":4,"t":"li","x":"This is a text"}, 
      {"level":3,"order":5,"t":"li","x":"This is a text"}, 
      {"level":3,"order":6,"t":"li","x":"This is a text"}, 
      {"level":3,"order":7,"t":"li","x":"This is a text"}, 
      {"level":3,"order":8,"t":"li","x":"This is a text"}, 
     {"level":2,"order":2,"t":"h4","x":"This is a text"}, 
    {"level":1,"order":2,"t":"div","a":{"class":"tx-0 m-3"}}, 
     {"level":2,"order":0,"t":"h2","x":"This is a text"}, 
     {"level":2,"order":1,"t":"h3","a":{"class":"tx-0 s-12 fw-3"}}, 
      {"level":3,"order":0,"t":"li","x":"This is a text"}, 
      {"level":3,"order":1,"t":"li","x":"This is a text"}, 
      {"level":3,"order":2,"t":"li","x":"This is a text"}, 
      {"level":3,"order":3,"t":"li","x":"This is a text"}, 
      {"level":3,"order":4,"t":"li","x":"This is a text"}, 
      {"level":3,"order":5,"t":"li","x":"This is a text"}, 
      {"level":3,"order":6,"t":"li","x":"This is a text"}, 
      {"level":3,"order":7,"t":"li","x":"This is a text"}, 
      {"level":3,"order":8,"t":"li","x":"This is a text"}, 
      {"level":3,"order":9,"t":"li","x":"This is a text"}, 
      {"level":3,"order":10,"t":"li","x":"This is a text"}, 
      {"level":3,"order":11,"t":"li","x":"This is a text"}, 
     {"level":2,"order":2,"t":"h4","x":"This is a text"}, 
]; 

Answer 1

あなたの実装の問題がparam1とparam2あなたが正しくない異なる戻り値であれば同じことをやって、両方のためのものです。あなたの補正は次のようになります。

z = [ { object1 }, { object2 }, { object3 },...,{ objectN }]; 
z.sort(function(x,y){ 
    if(x.param1-y.param1>0){return -1}; 
    if(x.param1-y.param1<0){return 1}; 
    if(x.param1-y.param1==0){ 
     if(x.param2-y.param2>0){return -1}; 
     if(x.param2-y.param2<0){return 1}; 
    }; 

}); 

ところで、私はあなたが何をしたかよりも、この多くを好む：

var items = [{ p1: 10, p2: 3 }, { p1: 9, p2: 4 }, { p1: 9, p2: 3 }, { p1: 10, p2: 2 }, { p1: 11, p2: 3 }, ]; 
 

 
items.sort((a, b) => (a.p1 - b.p1) || (a.p2 - b.p2)); 
 

 
console.log(items);

あなたは値の違いを見ることができるようにその機能をソートする意味があります注文に使用する減算の結果を渡すことができます。 differenceが0（偽も意味する）であれば、2番目のparamに移動し、その減算の結果を返します。

Answer 2

あなたは昇順のためのよりコンパクトなコールバックを使用することができます。

z.sort(function (x, y) { 
    return x.param1 - y.param1 || x.param2 - y.param2; 
}); 

または降順：

z.sort(function (x, y) { 
    return y.param1 - x.param1 || y.param2 - x.param2; 
});