Node.js API Masterclass with Express and MongoDB - Select & Sorting

The video tutorial explains how to modify query parameters in a Mongoose application. It covers selecting specific fields, copying and modifying request queries, excluding certain fields, and implementing sorting functionality. The tutorial also introduces the concept of pagination for managing query results. By the end, viewers will understand how to customize queries to retrieve specific data efficiently.

What is the main challenge when trying to select specific fields in a query response?

• The 'select' field is treated as a field to match.

• The fields are not recognized by the database.

• The query syntax is incorrect.

• The database does not support field selection.

Which operator is used to make a copy of an object in JavaScript?

• Spread operator

• Assignment operator

• Logical operator

• Equality operator

How can you remove specific fields from a request query in JavaScript?

• By using the filter method

• By using the reduce method

• By using the delete keyword

• By using the map method

What method is used to split a string into an array in JavaScript?

• join

• slice

• split

• splice

In Mongoose, how should fields be formatted when using the select method?

• Semicolon-separated

• Space-separated

• Comma-separated

• Colon-separated

Which method is used to join an array back into a string in JavaScript?

• merge

• concat

• join

• combine

What is the default sorting order when using the sort method in Mongoose?

• Descending

• Numerical

• Ascending

• Alphabetical

How can you sort query results by multiple fields in Mongoose?

• By using a nested query

• By using a comma-separated list

• By using a space-separated list

• By using a semicolon-separated list

What is the purpose of setting a default sort order in a query?

• To ensure consistent results

• To avoid syntax errors

• To improve query performance

• To reduce the size of the result set

What functionality is introduced at the end of the tutorial?

• Sorting

• Filtering

• Field selection

• Pagination