List Chunks Sample

COMMENT

Sample on how to break down a large list into smaller chunks - @supermamon for: https://www.reddit.com/r/shortcuts/comments/gd42iy/iterating_over_a_large_list_is_extremely_slow/

COMMENT

create a random list

MATHS

Random number between

10

and

120

SCRIPTING

Repeat

Random Number

TEXT

Item

Repeat Index

VARIABLES

Add

Text

to

list

End Repeat

COMMENT

make smaller chunks

COMMENT

set the maximum number of items to process in a batch

NUMBER

25

VARIABLES

Set variable

threshold

to

Number

COMMENT

calculate the number of batches needed to process the whole list

SCRIPTING

Count

Items

in

list

VARIABLES

Set variable

list_size

to

ItemCount

MATHS

list_size

…

Number

Options Under Construction

MATHS

list_size

-

remainder

Options Under Construction

MATHS

Calculation Result

÷

threshold

Options Under Construction

MATHS

Calculation Result

+

1

Options Under Construction

VARIABLES

Set variable

iterations

to

Calculation Result

COMMENT

start processing

NUMBER

1

VARIABLES

Set variable

start

to

Number

SCRIPTING

Repeat

iterations

VARIABLES

Set variable

batch_number

to

Repeat Index

COMMENT

find out which section of the list to process. this will result into the `start` and `end` variables

MATHS

start

+

threshold

Options Under Construction

MATHS

Calculation Result

-

1

Options Under Construction

VARIABLES

Set variable

end

to

Calculation Result

SCRIPTING

If

end

is greater than

list_size

VARIABLES

Set variable

end

to

list_size

End If

COMMENT

get the portion of the list and process them

SCRIPTING

Get

Items in Range

start

to

end

from

list

SCRIPTING

Repeat with each item in

Item from List

VARIABLES

Set variable

current_item

to

Repeat Item 2

COMMENT

Do what you need to do with the current_item here

TEXT

Batch

Repeat Index 2

# In Batch:

current_item

Item:

batch_number

VARIABLES

Add

Text

to

results

End Repeat

COMMENT

move on to the next batch by adjusting the start index to the next number

MATHS

end

+

1

Options Under Construction

VARIABLES

Set variable

start

to

Calculation Result

End Repeat

TEXT

Combine

results

with

New Lines

TEXT

List Size:

threshold

Threshold:

list_size

Iterations:

Combined Text

iterations