Method copy_to

src/fl/stl/json.h:300–302

    // Returns 0 if not a numeric array or json is null.
    template<typename T>
    size_t copy_to(fl::span<T> out) const FL_NOEXCEPT {
        return mValue ? mValue->copy_to(out) : 0;
    }

    // Stream packed-array elements into an output iterator with type conversion.
    // Use with fl::back_inserter(container) to append to any container.