list comprehension w/ iterators in rust
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/*
Rust:
Typical rust pattern is .iter().map(...).collect().
.iter() creates an iterator from a iterable data structure
.map() creates a new iterator modifying elements
.collect() stores all the elements into data structure.
Python:
list = [i*j for i in range(1, 4) for j in range(2, 5)]
print(list
*/
fn main() {
let old_arr = [2, 4, 6];
let new_arr = old_arr.map(|x| 2 * x);
println!("old_arr: {:?}", old_arr);
println!("new_arr: {:?}", new_arr);
}
Rust
INFO