arrays - Swift UserDefaults returns nil -


trying learn doing todolist; have 2 viewcontrollers, 1 store , 1 display in table view. table returns nil; going wrong ?

storage view:

    var todostorage = userdefaults.standard.object(forkey: "todo")     var todolist = [string] ()  @ibaction func savebutton(_ sender: any) {     if (todostorage as? [string]) != nil {         todolist.append(itemlabel.text!)     } else {         todolist = [itemlabel.text!]     }     userdefaults.standard.set(todolist, forkey: "todo")     itemlabel.text = "" }

display view:

    var todo = [userdefaults.standard.object(forkey: "todo")]  public func tableview(_ tableview: uitableview, numberofrowsinsection section: int) -> int{     return todo.count }  public func tableview(_ tableview: uitableview, cellforrowat indexpath: indexpath) -> uitableviewcell {      let cell = uitableviewcell(style: uitableviewcellstyle.default, reuseidentifier: "idcell")     cell.textlabel?.text = string(describing: todo[indexpath.row])     return cell }

just use store array of strings

var todo = userdefaults.standard.stringarray(forkey: "todo") ?? [string]()

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