They maybe rear their ugly head but they also allow you to collect the iterator into any collection written by you, by the standard library or by any other crate.
While in python you have list/dict/set/generator comprehension and that's it.
While in python you have list/dict/set/generator comprehension and that's it.
But you have to admit that is a pretty noisy line that could be difficult to parse.
let new_array: Vec<usize> = array.into_iter()
.filter(|&x| x != 0)
.map(|x| x * 2)
.collect();
let array = ["DE", "AD", "BE", "EF"];
let new_array: Vec<u32> = array.into_inter()
.map(|x| u32::from_str_radix(x, 16))
.collect()?;