Javascript: what is the $result.rows.item(x) variable type?

Question

I had a function that reads displays the contents of the SELECT query coming from WEBSQL of HTML5. I want to reuse that function but I have the problem since what am I getting is an Array of JSON object and I want to convert it it rows.item() so do anyone know how that works?

Example, I have this JSON Array

"retdic":[{"row_index":0,"lname":"Mato","age":26,"gender":"M","pic":"cyborg.jpg","fname":"Shibiru"},
          {"row_index":1,"lname":"Taro","age":30,"gender":"M","pic":"folder_wrench.png","fname":"Ichigo"},
          {"row_index":2,"lname":"Joni","age":27,"gender":"M","pic":"naruto.jpg","fname":"Perez"},
          {"row_index":3,"lname":"Sakura","age":24,"gender":"F","pic":"folder_table.png","fname":"Haruka"},              
          {"row_index":4,"lname":"Naruto","age":20,"gender":"M","pic":"naruto.jpg","fname":"Uzumaki"}]

How can I convert it to like $result.rows.item()? item() is not an array right coz if it is an array it should be item[].

UPDATE

Using the idea and help of Jeff I figured out how to do it. See the live example

Answer 1

Ok, so assuming that the only difference between your array and the item() function is that one is an array and the other a function (I'm assuming that you use item() as "$result.rows.item(3)" to get the 4th row), is pretty simple. Just define a function which takes a parameter i and returns the item at index i in the array. So:

var myItemFunction = function(i) {
     return retdic[i]
}

Answer 2

you don't need to convert this object, you can access your data in this way:

$result.retdic[0].lname // 0 - row number

or in a loop :

var i,item;
for (i in $result.retdic) {
  item = $result.retdic[i];
  console.log(item.fname)
}

P.S.: if you wish, you can rename the 'retdic' key to 'rows'

$res = {"rows":[
  {"name": "a"},
  {"name": "b"},
  {"name": "c"}
]};


var someKey = 'name',
valueOfSomeKey = $res.rows[rowNumberHere][someKey];