When working with Pinterest-style grids, you often need to add or remove items dynamically—such as when a user uploads a new photo or deletes an existing one. To keep your grid visually appealing and functional, you must update the layout each time items change. Masonry.js provides a layout method that recalculates item positions, ensuring your grid remains tidy after any modification.

The process for dynamically managing grid items involves three main steps:

• Insert or remove the desired grid item from the DOM;
• Trigger Masonry's layout method to update the grid;
• Optionally, add styles or transitions for new or removed items.

You can use JavaScript to create new grid items and append them to the container, or to remove existing items. After each change, calling Masonry's layout method ensures that all items snap into their correct positions.