omit

Returns a new map with the entries of map except those whose key is in keys.

Keys that are not in map are ignored. The complement of pick.

Import

use helpers4::map::omit;

Cargo feature map (enabled by default). To compile only this module:

cargo add helpers4 --no-default-features --features map

or in Cargo.toml:

[dependencies]
helpers4 = { version = "0.0.5", default-features = false, features = ["map"] }

Signature

pub fn omit<K: Clone + Eq + Hash, V: Clone, S: BuildHasher>(
    map: &HashMap<K, V, S>,
    keys: &[K],
) -> HashMap<K, V>

Parameters

Parameter	Type	Description
map	&HashMap<K, V, S>	The map to filter.
keys	&[K]	The keys to leave out.

Returns

HashMap<K, V>

Examples

use helpers4::map::omit;
use std::collections::HashMap;

let user = HashMap::from([("name", 1), ("email", 2), ("password", 3)]);
assert_eq!(omit(&user, &["password"]), HashMap::from([("name", 1), ("email", 2)]));

Source

src/map/omit.rs