Function rufl::collection::map

pub fn map<T, U>(vector: &Vec<T>, iteratee: impl Fn(&T, usize) -> U) -> Vec<U>

Creates new collection of element by running each element in collection thru iteratee.

• iteratee function signature: fn(item: &T, index: usize) -> U

Arguments

• collection - The collection to iterate over.

• predicate - The function invoked per iteration.

Returns

Returns the new mapped collection.

Examples

use rufl::collection;

assert_eq!(vec![2, 3, 4, 5, 6], collection::map(&vec![1, 2, 3, 4, 5], &|n: &i32, _i: usize| { *n + 1 }));

assert_eq!(vec![1, 0, 1, 0, 1], collection::map(&vec![1, 2, 3, 4, 5], &|n: &i32, _i: usize| { *n % 2 }));