Dictionary set value for keypath

test.swift

//: Playground - noun: a place where people can play

import UIKit

var str = "Hello, playground"


func setDictionary( dict:inout [String: Any], value: Any, forKey: String) {
    let keypaths = forKey.components(separatedBy: ".")
    guard keypaths.count > 1 else {
        dict[keypaths[0]] = value
        return
    }
    if var subdict = dict[keypaths.first!] as? [String: Any] {
        setDictionary(dict: &subdict, value: value, forKey: keypaths[keypaths.startIndex.advanced(by: 1)..<keypaths.endIndex].joined(separator: "."))
        dict[keypaths.first!] = subdict
    }
    
}

var tester = ["hahah": [
    "id":"123213",
    "fuck": "tsetest"
]] as [String: Any]


setDictionary(dict: &tester, value: "444", forKey: "hahah.id")
print(tester)