resetting variables

Question

The title says it all really.

how woulod you reset ALL variables and arrays in a programme ?

thanks ikn advance :)

Answer 1

Sorry, there is no automatic way to do this =(

However, for arrays, you can use a for loop and go through each array element and set them to "".

Answer 2

awwww that sucks :(

however the the arrays is exactly what i was looking for :) thanks

Answer 3

Arrays in SB are nothing more than a big primitive string!

For example:

array[100] = 30
array[-.5] = .25
array["a"] = "txt"

would be equivalent to:

array = "100=30;-.5=.25;a=txt;"

So, if you just wanna erase a variable, be it "normal" or "array", just assign "" to it!

array = ""

P.S.: If an array has more than 1 dimension, like in array[user]["pass"], you can choose to clear just one (or more) of its dimensions:

user = "samualsock"

TextWindow.WriteLine(user + ", type in your password:")
array[user]["pass"] = TextWindow.Read()

array[user] = ""

TextWindow.WriteLine("Here's your password:")
TextWindow.WriteLine(array[user]["pass"])

If array[user]["pass"] = "" Then
  TextWindow.WriteLine("Oops! I guess we've lost your password!!!")
EndIf

In the example above, the array would scale down from being 2D to become 1D only, and thus, erasing the ["pass"] field, and any others belonging to the 2nd dimension (and beyond)!

Well, at least for that particular user index.  If there are other "users" in that array, they would be unaffected!   ;-P

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Answer 4

Sorry, there is no automatic way to do this =(

However, for arrays, you can use a for loop and go through each array element and set them to "".

This is actually incorrect. Take for example, an array of numbers:

For i = 1 To 10
  num[i] = i
EndFor

You can clear all indexes by doing the following:

num = ""

If you was to print num[1] to the screen you would get an empty string.

Answer 5

Sorry, I didn't know that! Both methods work though.

Great point!

Answer 6

You can clear all indexes by doing the following:

num = 0

If you was to print num[1] to the screen you would get an empty string.

Just a little bit of clarifying...

Assigning 0 is not the same as erasing a variable, since the 0 value needs to be stored in memory!

Even though printing num[1] would result in nothing showing up, since that dimension has been deleted; if you just print num, you'd see result 0 displayed!

However, a num = "" would make sure nothing is stored!  ;-P

For i = 1 To 10
  num[i] = i
EndFor
TextWindow.WriteLine(num)

num = 0
TextWindow.WriteLine("w/ num = 0  -> " + num)

num = ""
TextWindow.WriteLine("w/ num = '' -> " + num)

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Answer 7

Hi GoToLoop,

You are correct, I did not test this, it was late, I shall edit my post for future reference to save and confusion.

Thank you for pointing this out.