javascript - How to create a complex/nested js object dynamically? -

i have following data.

var data = "a.b.c.d"; //just example can more deep.

1. a nested structure string create a.b.c.n

now want create js object data this..

{   "a":{      "b":{         "c":{             , on till given depth.             }        }   }  } 

what have tried

function createhierarchy( obj, group, i){      if(i === group.length){         return obj;     }     else{         if(obj[group[i]] === undefined)         {             obj[group[i]] = new object();          }          createhierarchy(obj[group[i]], group, ++i);      } } 

problem

this function returning me undefined sending newly created subobject in every recursive call , since newly created object {} , hence final result undefined.

update

i want create object if not exist.for eg : if d exists ill insert value it. else ill create it.

so added @tholle's answer.

if(temp[array[i]] === undefined)             temp = temp[array[i]] = {};         else             temp = temp[array[i]][name] = value; 

so kindly suggest way out.

var data = "a.b.c.n"; var array = data.split(".");  var result = {}; var temp = result; for(var = 0; < array.length; i++) {     temp = temp[array[i]] = {}; }  console.log(result);