concat

fn concat<T>(Vec<T> a, Vec<T> b) -> Vec<T>

use collections::vec::{concat};

Returns a new vector holding the elements of a followed by those of b.

Parameters#

Returns#

Vec<T>

Contracts#

Checked according to --contracts (see Contracts).

ensures result.len() == a.len() + b.len()

See also#

• fold_int: The same as fold; kept for older code.
• contains: Returns true when needle is in xs.
• index_of: Returns the index of the first needle in xs, or -1.
• binary_search: Finds needle in the ascending vector xs by halving, and returns an index holding it.
• dedup: Returns xs with runs of equal neighbours collapsed to one value.
• map: Returns a new vector with mapper applied to each element, in order.
• filter: Returns the elements for which pred is true, in order.
• first: Returns the first element, or None when xs is empty.