How to split string into multiple chunks by size

Questions & Help Questions
5

I found an answer from StackOverflow which goes like this:

 "hello world" 
|> String.codepoints
|> Enum.chunk_every(5)
|> Enum.map(&Enum.join/1)
# ["hello", " worl", "d"]

However, I not sure is there any performance implication here that I should take into consideration.