We create a special subscript for nested `[String:Any]` dictionaries that also has a getter

Dictionary Additions

// Created - Ranjit

import Foundation

//: ### Subscript Solution
//: We create a special subscript for nested `[String:Any]` dictionaries that also has a getter:

extension Dictionary {
    
    subscript(jsonDict key: Key) -> [String:Any]? {
        get {
            return self[key] as? [String:Any]
        }
    }
    
    subscript(string key: Key) -> String? {
        get {
            return self[key] as? String
        }
    }
    
    subscript(int key: Key) -> Int? {
        get {
            return self[key] as? Int
        }
    }
    
    subscript(bool key: Key) -> Bool? {
        get {
            return self[key] as? Bool
        }
    }
    
    subscript(double key: Key) -> Double? {
        get {
            return self[key] as? Double
        }
    } 
    
}