Method first

src/rt.rs:191–197

Returns the first item as a lazy mirror, or None if empty.

(&self)

    /// Returns the first item as a lazy mirror, or None if empty.
    pub fn first(&self) -> Result<Option<T::Lazy>> {
        if self.is_empty() {
            Ok(None)
        } else {
            Ok(Some(self.get_lazy(0)?))
        }
    }

    /// Returns the last item as a lazy mirror, or None if empty.
    pub fn last(&self) -> Result<Option<T::Lazy>> {