Get the index out of AnyObject list of items IOS

Question

parsed is an NsDictionary and I am pulling the balances out of it via

if let findbalances: AnyObject = parsed["balances"]

which gives me a list of balances in AnyObject format

(
    {
    "available_amount" = 133519;
    currency = AUD;
},
    {
    "available_amount" = 7854;
    currency = CAD;
},
    {
    "available_amount" = 88581;
    currency = EUR;
},
    {
    "available_amount" = 0;
    currency = GBP;
},
    {
    "available_amount" = 63618;
    currency = INR;
},
    {
    "available_amount" = 375;
    currency = NZD;
},
    {
    "available_amount" = 0;
    currency = TRY; 
},
    {

    "available_amount" = 2918958;
    currency = USD;

}
)

I know that

let whatCurrency = (findbalances[7]["currency"] as! String)

=USD But how do I find that value [7] if the amount of objects changes?

I want to match on USD

I tried

let  defaultcurr = "USD"
let findUSD = findbalances.indexOfObject(defaultcurr)

but that gave me 9223372036854775807

How do I just find 7

Answer 1

9223372036854775807 is NSNotFound.

You can use a closure as argument of indexOf

let  defaultcurr = "USD"
let findUSDIndex = findbalances.indexOf { ($0["currency"] as! String) == defaultcurr }

Or you can filter the entire row

let findUSD = findbalances.filter { ($0["currency"] as! String) == defaultcurr }.first

indexOfObject seems to be using NSArray. Don't do that. Use Swift native Array and cast your collection object to [[String:AnyObject]] :

if let findbalances = parsed["balances"] as? [[String:AnyObject]] { ...