How to install .NET Core 3 and 3.1 Blazor project templates?

To install Blazor project templates, update the .NET Core SDK to the latest version. Blazor server-side template is available by default when you create a new Blazor project in Visual Studio. To get the Blazor WebAssembly project template,  install them via the following command line.

dotnet new -i Microsoft.AspNetCore.Blazor.Templates::3.2.0-preview1.20073.1

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