D) Enabling method overloading with generic constraints Answer: A) Allowing a derived type where a base type is expected (using out) Covariance (out) allows using a more derived type. E.g., ...

Yesterday I learned to read data using req.params. Today I learned to change data using HTTP POST, PUT, and DELETE methods. I used the file system to modify my local database. Writing code that ...

Retrieve only fields that are needed. 3️⃣ Remove Unused Variables Free memory whenever possible. 4️⃣ Avoid Storing Large Collections Process records incrementally instead of storing everything. 5️⃣ ...