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If you’ve spent time in the C# world, you’ve probably encountered (and possibly asked) the question: “Should I use .ToList() or .ToArray()?”
As a Web developer, I was looking for leveraging my skills (C#, Razor, .NET) to write fast and cross-platform desktop apps. You can be ambitious for speed if you discover Electronjs technology that outperforms desktop technologies on Windows such as WPF and WinForms. You notice that performance if you use Visual Studio Code the most popular code editor in the world.
The need to do things in an asynchronous way – that is, dividing big tasks between multiple working units – was present long before the appearance of computers. However, when they did appear, this need became even more obvious.
Though C# 8 is supposed to be released this year and the roadmap for C# 8.x and 9 are beginning to be formed, Microsoft is continuing to approve features for the next release.
In this post I wanted to show you how to write and embed a C# interactive shell (a REPL – read-evaluate-print-loop) in a browser, on top of WebAssembly. The REPL will give you fully fledged C# interactive development playground, while still being completely sandboxed in the browser environment. I originally wrote this example for my session at Dotnet Cologne on May 10 this year.