pub fn zfill<D: Dimension>(
a: &StringArray<D>,
width: usize,
) -> FerrayResult<StringArray<D>>Expand description
Pad each string on the left with zeros to fill the given width.
If the string starts with a sign (+ or -), the sign is placed
before the zeros. If the string is already longer than width,
it is returned unchanged.
ยงErrors
Returns an error if the internal array construction fails.