Blazor Hot Reload

launchsettings.json

{
  "$schema": "http://json.schemastore.org/launchsettings.json",
  "iisSettings": {
    // truncated
  },
  "profiles": {
    "http": {
      "hotReloadEnabled": true, // add this
      // truncated
    },
    "https": {
      "hotReloadEnabled": true, // and this
      // truncated
    },
    "IIS Express": {
      // truncated
    },
    "Debug & Hot Reload": {
      "commandName": "Executable",
      "workingDirectory": "$(ProjectDir)",
      "executablePath": "dotnet",
      "commandLineArgs": "watch run debug --launch.profile https"
    }
  }
}

// then in your VS run the project using profile "Debug & Hot Reload"