carlrip

const reducer = (state: State, action: Actions): State => {
  switch (action.type) {
    case "increment":
      return { count: state.count + action.incrementStep };
    case "decrement":
      return { count: state.count - action.decrementStep };
    default:
      neverReached(action);
  }
};

carlrip

const reducer = (state: State, action: Actions): State => {
  switch (action.type) {
    case "increment":
      return { count: state.count + action.incrementStep };
    case "decrement":
      return { count: state.count - action.decrementStep };
    default:
      action;
  }
};

carlrip

type Increment = {
  type: 'increment';
  incrementStep: number;
};
type Decrement = {
  type: 'decrement';
  decrementStep: number;
};
type Actions = Increment | Decrement;

carlrip

app.UseEndpoints(endpoints =>
{
  endpoints.MapControllers();
  endpoints.MapHub<QuestionsHub>("/questionshub");
});

carlrip

const connection = new HubConnectionBuilder()
  .withUrl(`${server}/questionshub`)
  .withAutomaticReconnect()
  .build();

carlrip

public static string GetLevel(int level) =>
  level switch
  {
    1 => "low",
    2 => "medium",
    3 => "high",
    _ => throw new ArgumentException("invalid level"),
  };

carlrip

<PropertyGroup>
  ...
  <LangVersion>8.0</LangVersion>
  <Nullable>enable</Nullable>
</PropertyGroup>

carlrip

var jsonContent = await response.Content.ReadAsStringAsync();
var user = JsonSerializer.Deserialize<User>(jsonContent, new JsonSerializerOptions
{
  PropertyNameCaseInsensitive = true
});

carlrip

"dependencies": {
  "babel-eslint": "10.0.1",
  "bootstrap": "^4.1.3",
  "jquery": "^3.4.1",
  "merge": "^1.2.1",
  "oidc-client": "^1.9.0-beta.4",
  "react": "^16.0.0",
  "react-dom": "^16.0.0",
  "react-router-bootstrap": "^0.24.4",
  "react-router-dom": "^4.2.2",

carlrip

<Layout>
  <Route exact path='/' component={Home} />
  <Route path='/counter' component={Counter} />
  <AuthorizeRoute path='/fetch-data' component={FetchData} />
  <Route path={ApplicationPaths.ApiAuthorizationPrefix} component={ApiAuthorizationRoutes} />
</Layout>