将无序键分配给Js数组 [英] Assigning Unordered keys to a Js array

问题描述

我得到一个随机键值对，我可以将它分配给数组吗?

I am getting a random key value pair,Can i assign it to an array?

在这里，当我像 arr [50] ='abc'一样分配它时，它会产生问题，它会自动创建多达50个的键，例如 arr [0] ， arr[1] ， arr [2] 等.

Its problematic here when I assign it like arr[50] = 'abc' it automatically creates the keys upto 50 like arr[0],arr[1],arr[2] and so on.

并且我想要一个类似 arr [50 =>'abc'，'40'=>'pqr'，'53'=>'lmn']

我在这里

if(typeof(feedArr.latestRating) == 'object'){ 
                  jQuery.each(feedArr.latestRating,function(key,val){alert('key::'+key);
                    if(key in newRatingArr){ 
                    //delete the key if already exists
                      newRatingArr.splice(key,1);

                    }else{
                      //insert the key,value
                        newRatingArr[key] = val; //here is the problem occurs when key is 50 it automatically creates the indexes in the array upto 50 which i dont want
                       // alert('Key between::'+key);
                       // alert('Value between::'+newRatingArr[key]);
                      //newRatingArr.splice(key,0,val);
                    }
                    //alert(key); 
                  emptyRate = 0;

                  });
                }else{
                  emptyRate = 1;
                }

我在这里可以做什么?请让我知道.

What can i do here?Please let me know.

推荐答案

使用对象 {} 代替数组 [] .

对象可以充当无序键值容器，这似乎是您需要的.

Objects can act as unordered key-value containers, which is what you seem to be needing here.

// somewhere...
var newRatingArr = {};

// your code.
var emptyRate = true;
if (typeof (feedArr.latestRating) == 'object') {
    jQuery.each(feedArr.latestRating, function (key, val) {
        newRatingArr[key] = val;
        emptyRate = false;
    });
}

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