vast cargo
I looked at the standard library documentation and did not see anything about indexing strings ?
I wanted to make my own but I need to get the tail of the string (equivalent of rest in [_, ..rest] for a list) but I'm not sure how to do so (except string.slice(s, 1, string.length(s)-1))
Is there a way to index a string (for example to get the 7th character of a string) ?
If not, is there a way to get the tail of the string ?
valid kernel
you can do both with string.slice, or convert it to graphemes with string.to_graphemes and operate on the list
vast cargo
Doesn't string.slice make a whole new copy of the string ?
valid kernel
if you just want the first grapheme and the rest, use pop_grapheme: https://hexdocs.pm/gleam_stdlib/gleam/string.html#pop_grapheme
on the Erlang target string.slice uses Erlang's string:slice which seems to return a substring -> a copy is not created
median wolf
Strong indexing is slow in any language with proper Unicode support btw
You generally don’t want to use it
vast cargo
So in order to traverse a string, would it be preferable to use string.slice or convert it to a list of chars and traverse it ?