Method value_length

arrow-array/src/array/map_array.rs:232–235

(&self, i: usize)

    /// Returns the length for value at index `i`.
    #[inline]
    pub fn value_length(&self, i: usize) -> i32 {
        let offsets = self.value_offsets();
        offsets[i + 1] - offsets[i]
    }

    /// Returns a zero-copy slice of this array with the indicated offset and length.
    pub fn slice(&self, offset: usize, length: usize) -> Self {