Extract the second column from a list of list without cycle

MIT App Inventor Help
1

is it possible ?

2

image

4 Likes
4

Thanks Kevin, why my blocks produce an empty list ?

blocks(1)
blocks(1)809×437 25.4 KB

5

Try this:

image

2 Likes
6

Hi Tim, it runs, why?

7

Because it is treating the list as a dictionary, therefore (just guessing) the first column is seen as the key, the second column is seen as the value. You get a different behaviour when there are more "columns"

8

This should be more robust:

column2
column21110×396 47.3 KB

column_test

1 Like
9

Thanks to all, solved.

10

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