Convert array to Object by JSON.parse

Question

var arr=[];
arr['first']='val1';
arr['second']='val2';


var json=JSON.stringify(arr);
var obj=JSON.parse(json);  //obj is array

Can I return object {"first":"val1","second":"val2"} ?

P.S.: I read Convert Array to Object topic

I'm interested in this way of the function

Simply [don't use arrays like that](http://andrewdupont.net/2006/05/18/javascript-associative-arrays-considered-harmful/). Can't you change the code to `var arr = {};`? — Bergi, Sep 18 '13 at 03:48
You are already using `arr` as an object when setting values in this `arr['first']='val'` manner. What do you want to achieve? — Shalom Aleichem, Sep 18 '13 at 03:49

score 2 · Accepted Answer · answered Sep 18 '13 at 03:51

If somebody has abused arrays like that, JSON does not help you. It will only serialize the numeric indices of Array objects, nothing else. Copy the properties by hand:

var obj = {};
for (var prop in arr)
    if (arr.hasOwnProperty(prop)) // don't copy enumerables from Array.prototype
        obj[prop] = arr[prop];

console.log(obj); // {"first":"val1","second":"val2"}

score 1 · Answer 2 · answered Sep 18 '13 at 03:48

1

You shouldn't use an array to represent this:

Do this instead:

var obj = {first:"val1",second:"val2"};

Just define the object directly . Stringify and parsing is not necessary

answered Sep 18 '13 at 03:48

TGH

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Convert array to Object by JSON.parse

2 Answers2