Styjun

So the idea is that users can create collections with many pairs of words in it.

For example, they created a collection nouns and added inside some words and the words' translations. And then they created another collection named colors and added corresponding keys and values and so on:

userInput = 
 nouns: 
 "dog": "translation",
 "cat": "translation",
 "fish": "translation"
 //etc
 ,
 colors: 
 "red": "translation",
 "green": "translation",
 "blue": "translation"
 //etc
 
 //etc..

How do I implement this in Swift?

Does it mean that I have to create new dictionaries every time the user adds new collections?

I have tried doing something like

var dict = [String: AnyObject]()
var collectionNanme = input.text
dict[collectionNanme] = [Dictionary<String, String>]() as AnyObject

dict[collectionNanme].append([word1.text: word2.text])

But the number of erros in uncountable! What is the proper way to do this?

update:

import UIKit
var main = [String: [String:String]]()

class ViewController: UIViewController 

 @IBOutlet weak var collection: UITextField!
 @IBOutlet weak var input1: UITextField!
 @IBOutlet weak var input2: UITextField!

 var collectionName = collection.text!
 var inner:[String:String] = main[collectionName] ?? [:]

 inner[input1.text!] = input2.text!
 main[collectionName] = inner

 @IBAction func click(_ sender: Any) 
 print(main[collectionName])
 

You need

var main = [String: [String:String]]()

Get current value

var collectionName = input.text! // nouns / colors
var inner:[String:String] = main[collectionName] ?? [:] 

Change and set back

inner["dog"] = "translation"
main[collectionName] = inner

import UIKit

var main = [String: [String:String]]() // global
class ViewController: UIViewController 

 @IBOutlet weak var collection: UITextField!
 @IBOutlet weak var input1: UITextField!
 @IBOutlet weak var input2: UITextField! 


 var collectionName = "nouns"

 override func viewDidLoad() 
 super.viewDidLoad()

 var collectionName = collection.text! // collection.text! will be "" as textfield is empty when the above function is called 
 var inner:[String:String] = main[collectionName] ?? [:] 
 inner[input1.text!] = input2.text!
 main[collectionName] = inner

 

 @IBAction func click(_ sender: Any) 
 print(main[collectionName])
 

OR

import UIKit

var main = [String: [String:String]]() // global
class ViewController: UIViewController 

 @IBOutlet weak var collection: UITextField!
 @IBOutlet weak var input1: UITextField!
 @IBOutlet weak var input2: UITextField! 


 var collectionName = "nouns"

 override func viewDidLoad() 
 super.viewDidLoad()



 

 @IBAction func save(_ sender: Any) // save button action
 print("Before save : " , main)

 var collectionName = collection.text! 
 var inner:[String:String] = main[collectionName] ?? [:] 
 inner[input1.text!] = input2.text!
 main[collectionName] = inner

 print("After save : " , main)