This is a companion discussion topic for the original entry at https://www.raywenderlich.com/5994-programming-in-swift/lessons/48
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/5994-programming-in-swift/lessons/48
Catie and Jessy,
Your videos, well all of videos on this site, are extremely informative and helpful. As I go through the videos, as well as the books, I try to change the code in a manner that would be consistent with apps that I may build at some point in the future. With regard to this lesson on Classes vs Structures, I was trying to create a multidimensional array instead of a single array but, swift either doesn’t allow this, or I am not doing something right (my guess the latter).
Below is the Playground code that I tried. Everything works until I try to append the individual arrays to the mdArray. It runs without errors but it creates an empty multidimensional array. Is it possible to accomplish what I am trying in this manner?
Some of the copied code is not displaying correctly. The the TodoList array for var mdArray is contained in [[]] and the TodoList array for var item is contained in []
All of the var arrayX are contained in []
Thank you,
James
class TodoList {
var itemText = “”
}
var mdArray = [TodoList]
var items = TodoList
var array1 = TodoList
var array2 = TodoList
var array3 = TodoList
var item1 = TodoList()
item1.itemText = “Dentist”
array1.append(item1)
var item2 = TodoList()
item2.itemText = “Home Depot”
array2.append(item2)
var item3 = TodoList()
item3.itemText = “Teleconferences”
array3.append(item3)
mdArray.append(array1)
mdArray.append(array2)
mdArray.append(array3)
Hi James!
In order to see where you’re actually starting from, can you please select your code and get it looking like it does in your playground?
-
The best way is to use Markdown syntax. For that, use surrounding lines of three backticks like so:
-
You can also us the “Preformatted text” button, but that doesn’t render syntax as well on the forum.
Hello Jessy,
I tried the preformatted text button but the code is still being modified when I copy into the forum text box. I will keep goggling. I am sure the answer is out there!
Thank you,
James
The array declarations should look like this:
var mdArray: [[TodoList]] = []
var array1: [TodoList] = []
var array2: [TodoList] = []
var array3: [TodoList] = []
Then, after you append your stuff, you should be able to print something out:
print(mdArray[0][0].itemText)
print(mdArray[1][0].itemText)
print(mdArray[2][0].itemText)
Thank you very much for the feedback. The print statement that you provided solved the issue I was having. Playground is now displaying the content within mdArray.
Thank you,
James