These questions were only shown to the developers who chose C# as one of their three primary programming languages.
What versions of C# do you regularly use?
C# developers adopt new versions quickly. More than half of them use C# 8. It seems many start using the new language features when they are released.
What runtimes do you regularly use?
Adoption of .NET Core is still growing. Let’s see if it manages to beat .NET Framework next year.
Which technologies or frameworks do you use?
ASP.NET MVC has lost its precedence, and ASP.NET Core has moved into the leading position.
Which IDE or editor do you mostly use for C# development?
What operating system is your C# development environment using?
It looks like some developers take advantage of .NET Core being cross-platform and use it on operating systems other than Windows. Their number is still relatively low, however.
Which unit-testing frameworks do you regularly use, if any?
This question was only answered by respondents who either write or use unit tests.
Both MSTest and MSTest v2 have suffered a sharp drop in popularity.
What performance or diagnostic tools do you regularly use, if any?
Unity3D developers predominate among those with specific frameworks who don’t use any profiling tools.
In Rider, auto-detect memory issues in your application with Dynamic Program Analysis, which runs in the background of your IDE. Check out what this user has to say about how helpful it can be:
“Dynamic Program Analysis in @JetBrainsRider caught a 13GB memory allocation on application start from some old code I hadn't looked at in a while. Silly mistake using .ToString() instead of parsing to an int.”
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