Sorting

Question 1

How do you use a URL to send a sorting query?

Answer 1

URL?sort=attr,atrr,atrr

Question 2

What do the attributes after the first attribute mean in a sort request?

Answer 2

They are the attributes used to sort in case of a tie breaker from sorting using the previous attributes

Question 3

In what order is sorting done by default?

Answer 3

Ascending order

Question 4

How would you send a sorting request in descending order to MongoDB?

Answer 4

by adding a negative sign before the attribute you wish to sort with e.g. URL?sort=-attr

Question 5

Write the code for handling sorting in Mongoose.

Answer 5

if(req.query.sort){const x = req.query.sort.split(‘,’).join(‘ ‘);query = query.sort(x)}else{query = query.sort(‘default attr’);}