converting array to json object

Question

I have an array in java script .. something like: var myarray = ['a','b',c']; and var item = 'Name'; and I want to convert that to something like

{
 a:{
    b:{
       c:{
          item:'Name'     
         }
      }
   }
}

@Barmar is right. But in case you do need a JSON string and simply didn't format the question correctly, just take one of the answers below, and do JSON.stringify( result ) to get a JSON representation of that object — yuvi
– yuvi, Commented Jul 3, 2014 at 9:48

deceze · Accepted Answer · 2014-07-03 09:52:18Z

3

var result = myarray.reverse().reduce(function (value, key) {
    var result = {};
    result[key] = value;
    return result;
}, { item : item });

In other words, you're packing the result layer by layer into new objects, using your keys from the array.

edited Jul 3, 2014 at 9:52

answered Jul 3, 2014 at 9:41

deceze♦

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1 Comment

yuvi Over a year ago

That probably should be reverse().reduce( ... )

Barmar · Accepted Answer · 2014-07-03 09:42:04Z

1

var obj = {};
var curobj = obj;
for (var i = 0; i < myarray.length; i++) {
    var newObj = {};
    newObj[myarray[i]] = newObj;
    curObj = newObj;
}
curObj.item = item;

The result you want will be in the obj object.

answered Jul 3, 2014 at 9:42

Barmar

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