== Resources

=== Documentation

* Microsoft Learn - https://learn.microsoft.com/en-us/dotnet/api/system.linq.enumerable.single[`Single`]
* Microsoft Learn - https://learn.microsoft.com/en-us/dotnet/api/system.linq.enumerable.first[`First`]
* Microsoft Learn - https://learn.microsoft.com/en-us/dotnet/api/system.linq.enumerable.singleordefault[`SingleOrDefault`]
* Microsoft Learn - https://learn.microsoft.com/en-us/dotnet/api/system.linq.enumerable.firstordefault[`FirstOrDefault`]

=== Articles & blog posts

* https://medium.com/@anyanwuraphaelc/first-vs-firstordefault-single-vs-singleordefault-a-high-level-look-d24db17a2bc3[First vs FirstOrDefault, Single vs SingleOrDefault: A High-level Look]