Method keys

src/entity/sparse.rs:257–259

(&self)

    #[inline]
    #[must_use]
    pub fn keys(&self) -> impl DoubleEndedIterator<Item = K> + ExactSizeIterator + '_ {
        self.dense.iter().map(|(k, _v)| *k)
    }

    /// Iterate over all the values in this map.
    #[inline]