## Discuss Scratch

-Fuzzbutt-
New to Scratch
8 posts

### Is there a maximum variable length?

I was just wondering if there is a maximum length for a variable, because a project I'm working on requires it to be at least 21600 digits long, and it would be nice if it could be 1382400 digits long. But right now it seems like it cannot get past 10240 digits.

Thanks!

-Fuzzbutt-

You have just read great wisdom from -Fuzzbutt-.
TheHockeyist
Scratcher
1000+ posts

### Is there a maximum variable length?

10240 digits is probably the limit. Could you try compressing the data if possible?

-Fuzzbutt-
New to Scratch
8 posts

### Is there a maximum variable length?

TheHockeyist wrote:

10240 digits is probably the limit. Could you try compressing the data if possible?
Possibly. The project is a screen scanner that finds the color of pixels on the screen. Then it records the color in an 8-digit number, adds it to a variable, and saves it to be drawn again any time from pen.

You have just read great wisdom from -Fuzzbutt-.
myhf
Scratcher
13 posts

### Is there a maximum variable length?

A variable can hold up to 10240 unicode characters. You can use a reasonable-size lookup table to convert each 1-byte number into a unique character, or an absurdly large lookup table to convert larger numbers into unique characters.

`define save: (number)set [lookup table v] to [0123456789abcdefghijklmnopqrstuvwxyzABC...]set [string v] to (join [(string)] [(letter (number) of [lookup table])])define restore: (string)set [i v] to [1]repeat until <[i] = (length of [(string)]) >  set [char v] to (letter (i) of [(string)])  set [j v] to [1]  set [number v] to []  repeat until <<[j] = (length of [(lookup table)]) > or <not <[(number)] = [ ]>>>    if <(letter (j) of [(lookup table)]) = [(char)]> then      set [number v] to (j)      ... // do something with number    end  end  change [i v] by (1)end`
-Fuzzbutt-
New to Scratch
8 posts

### Is there a maximum variable length?

myhf wrote:

A variable can hold up to 10240 unicode characters. You can use a reasonable-size lookup table to convert each 1-byte number into a unique character, or an absurdly large lookup table to convert larger numbers into unique characters.

`define save: (number)set [lookup table v] to [0123456789abcdefghijklmnopqrstuvwxyzABC...]set [string v] to (join [(string)] [(letter (number) of [lookup table])])define restore: (string)set [i v] to [1]repeat until <[i] = (length of [(string)]) >  set [char v] to (letter (i) of [(string)])  set [j v] to [1]  set [number v] to []  repeat until <<[j] = (length of [(lookup table)]) > or <not <[(number)] = [ ]>>>    if <(letter (j) of [(lookup table)]) = [(char)]> then      set [number v] to (j)      ... // do something with number    end  end  change [i v] by (1)end`
I kinda not really get that. But I get the general idea. And now that I think of it, that would be a good way to do it. I could also do it with a list to simplify it.

You have just read great wisdom from -Fuzzbutt-.
8bitprogrammer
Scratcher
10 posts

### Is there a maximum variable length?

Why dont you do 2 variables joined together?
`(join (Part 1) (Part 2))`
Then you can technically make infinite length, “Variables”

Last edited by 8bitprogrammer (May 6, 2016 12:41:18)

drmcw
Scratcher
1000+ posts

### Is there a maximum variable length?

Using a list is the only way to break the 10240 limit. Store each character in a list then when you want to use the whole string use the list reporter

https://scratch.mit.edu/projects/24934494/

Last edited by drmcw (May 6, 2016 13:38:14)

10 !
jerrymonkey
Scratcher
28 posts

### Is there a maximum variable length?

No no no no no no no You guys are wrong.

A standard “Global Variable” (Is not a cloud variable, but for all sprites) can handle –9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 (Numbers) which is a “Long” datatype.

And so if you do 3213546543132456315635431234523543 mod 2 you will get 0 (Overloads and should get 1)

Last edited by jerrymonkey (Feb. 11, 2017 10:36:03)

deck26
Scratcher
1000+ posts

### Is there a maximum variable length?

jerrymonkey wrote:

No no no no no no no You guys are wrong.

A standard “Global Variable” (Is not a cloud variable, but for all sprites) can handle –9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 (Numbers) which is a “Long” datatype.

And so if you do 3213546543132456315635431234523543 mod 2 you will get 0 (Overloads and should get 1)
If you build it up character by character and treat it as text a variable will hold 10240 characters - if you're using join to create it it is going to be treated as text anyway.

So perfectly possible to hold 10240 digits in a variable but you have to be careful how you use it - don't treat it as a number!
drmcw
Scratcher
1000+ posts

### Is there a maximum variable length?

jerrymonkey wrote:

No no no no no no no You guys are wrong.

A standard “Global Variable” (Is not a cloud variable, but for all sprites) can handle –9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 (Numbers) which is a “Long” datatype.

And so if you do 3213546543132456315635431234523543 mod 2 you will get 0 (Overloads and should get 1)
No no no no no no no You are wrong.

10 !
LittlePuke
Scratcher
9 posts

### Is there a maximum variable length?

Why is there a imit anyway?
4424dev
Scratcher
1 post

### Is there a maximum variable length?

LittlePuke wrote:

Why is there a imit anyway?
This is so Scratch can handle the variables.
deck26
Scratcher
1000+ posts

### Is there a maximum variable length?

LittlePuke wrote:

Why is there a imit anyway?
Most computer languages (if not all) will set limits for each variable type - generally based on the number of bytes allocated to each variable.
chexbox
Scratcher
100+ posts

### Is there a maximum variable length?

Yesterday I posted about the same thing with a list item. I still cant get over 10240 digits.

Charles12310
Scratcher
1000+ posts

### Is there a maximum variable length?

drmcw wrote:

Using a list is the only way to break the 10240 limit. Store each character in a list then when you want to use the whole string use the list reporter

https://scratch.mit.edu/projects/24934494/
That's what I usually so for very long strings.

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capecod18
Scratcher
6 posts

### Is there a maximum variable length?

how do you lower a variable size? i need the variable to be only 3, but the lowest i can get is 100
RealTheFluffyKing
Scratcher
1 post

### Is there a maximum variable length?

Use the block set (variable) to (3)

Last edited by RealTheFluffyKing (Dec. 8, 2018 05:30:05)

McNichollFam
Scratcher
2 posts

### Is there a maximum variable length?

my project needs a very long cloud variable so i can't use the list workaround.
codeman1044
Scratcher
1000+ posts

### Is there a maximum variable length?

Please don't necropost. If you need help with a project, create your own topic.

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