How to maintain ordered objects in mongodb?

@orpha 

In MongoDB, you can maintain ordered objects by using arrays to store the ordered data. Here are some best practices for maintaining ordered objects in MongoDB:

1. Use arrays to store ordered data: Arrays in MongoDB preserve the order of elements within the array. You can store ordered data as an array of objects in a document.
2. Use the $push operator to add items to an array: When adding items to an array in MongoDB, use the $push operator to maintain the order of the objects within the array.
3. Use the $position modifier to insert items at a specific position: If you need to insert an item at a specific position in an array, you can use the $position modifier with the $push operator. This will allow you to maintain the order of the objects in the array.
4. Use the $addToSet operator to add unique items to an array: If you want to add unique items to an array in MongoDB, you can use the $addToSet operator. This will ensure that duplicate items are not added to the array while maintaining the order of the objects.
5. Use the $sort operator to sort items in an array: If you need to sort the items in an array, you can use the $sort operator to order the objects within the array based on a specific field.

By following these best practices, you can maintain ordered objects in MongoDB and ensure that the order of the objects is preserved when querying and manipulating the data.