Question about replace item

[Ricardo4 (Ricardo)]

Hi all,

I am currently a bit confused here with this simple case, if my indices have one True value, why does the resulting list have 2 Null? (It should be only 1)

question.gh (8.9 KB)

Thanks!

[11159 (Masaki)]

Hello,
True is 1,False is 0.
Also, since nothing is connected to Item, 0 of Index and 1 will be null.