[SOLVED] I have a string, something like "Test;Test1;;;;;". Applying ```myString .map { it.split...

# android

[Lilly]

[SOLVED] I have a string, something like "Test;Test1;;;;;". Applying

myString
    .map { it.split(";") }

gives me a List<List<String>> where the last items are empty strings because split interperets ";" as empty string -> "". I would like to have null instead of "" . How can I achieve this? Output should be List<List<String?>>

[ade]

.map { if(it != "") it else null }

[Lilly]

it is a List<String>, that does not work

[Lilly]

I could do:

.map { it.split(";") }
.flatten()
.map { it.ifBlank { null } }

but then I don't know how to get it back to List<List<String?>>

[ade]

applying map on the string splits it into a list where every character is one item. is that what you are trying to do?

[Lilly]

Thanks @ade, you enlighten me. This works:

.map { it.split(";").map { item -> item.ifBlank { null } } }