What are grid lines in computer programming?

In computer programming, grid lines refer to the invisible or visible lines that divide a layout into a structured grid format, helping to align visual elements consistently. They are commonly used in graphical user interfaces (GUIs) and design tools to facilitate the arrangement of components, ensuring proper spacing and alignment. Grid lines aid in maintaining uniformity and improving the overall aesthetics of an application or webpage. In some programming contexts, they can also refer to the underlying structure that organizes data in a grid format, such as in spreadsheets or data visualization.