I got User Defaults with the key "abc" for example and it contains a string.

The last string stored in this key is "aaa".

Now, I want to store an additional value for this key, but I don't want to delete the last value "aaa" because I need it. 

I want to have an Array of strings contains at the second retreive: ["aaa","some\_other\_value", "some\_other\_value2"...].

This is my code so far to store the information in user defaults:

```
self.user_defaults.set(self.myTextField.text, forKey:"asd")

```

This is the code for get the data:

```
if let arr = user_defaults.string(forKey:"asd"){
    print (arr)
}

```