Method in collections::map · HashMap coil-stdlib

`HashMap::is_empty`

pub fn is_empty() -> bool

Import

use collections::map::{HashMap};

Returns true when the map has no entries.

Called on a HashMap value as value.is_empty(…).

Returns#

bool

HashMap: A hash map from keys of type K to values of type V.
HashMap::with_capacity: Creates an empty map with room for about cap buckets before it grows.
HashMap::new: Creates an empty map.
HashMap::size: Returns the number of entries.
HashMap::capacity: Returns the number of buckets.
HashMap::clear: Removes every entry, keeping the bucket count.
HashMap::keys: Returns the keys, in insertion order.
HashMap::values: Returns the values, in the insertion order of their keys.