Gain insights into advanced TypeScript skills. Delve into enhancing reducers, generics, React's Context API, and explore TypeScript 5.0. Prepare to build robust, scalable applications confidently.

typescript.tar.gz

reducers-simple

reducers-complete

type-assertion

type-assertion-build

context-main

create-context

polymorphic-button

polymorphic-input

polymorphic-polymorphic

typescript 5.3.3

This course empowers learners with advanced skills in TypeScript. This course will help you master TypeScript concepts and techniques, equipping you with the knowledge to build robust, scalable, and maintainable applications.

The course covers various topics, including optimizing reducers for improved type safety and efficient state management. Next, it explores generics in TypeScript and tackles challenges with React’s Context API. You will also gain insights into extending DOM elements and crafting polymorphic components. Lastly, you will explore the latest advancements in TypeScript 5.0.

After completing this course, you will gain the skills and knowledge to emerge as proficient TypeScript developers, confident in your ability to tackle complex development challenges. Whether working on frontend or backend development, you will be well-prepared to navigate modern web development with TypeScript.

Unleashing the Power of TypeScript

Why is a Redux action required to be an object with a `type` property?

Why is a Redux action required to be an object with a <code>type</code> property?

In the `CounterAction` type, what property is used for additional information?

In the <code>CounterAction</code> type, what property is used for additional information?

It inserts a `default` case automatically.

It removes the need for a `default` case.

It suggests adding more cases to the `switch` statement.

What does TypeScript do when it realizes that all possible cases are covered in a `switch` statement?

What does TypeScript do when it realizes that all possible cases are covered in a <code>switch</code> statement?

Initializes the state with `count` set to `0`.

Initializes the reducer with an initial `state`.

Sets up the reducer and initial `state` for the `Counter` component

Declares a constant array with `state` and `dispatch` variables.

What does the following line do?

```
const [state, dispatch] = useReducer(counterReducer, { count: 0 }); 
```

What does the following line do?
<pre><code>const [state, dispatch] = useReducer(counterReducer, { count: 0 }); 
</code></pre>

It requires additional libraries for type checking.

It uses a different syntax for defining functions.

It adds explicit type annotations for state and action.

How is the TypeScript version of a reducer different from JavaScript?

How is the TypeScript version of a reducer different from JavaScript?

According to the Flux standard action convention, where should additional information be placed in an action?

According to the Flux standard action convention, where should additional information be placed in an action?

The types are inferred from the return types of the reducer and initial state.

TypeScript uses the default types for state and dispatch.

The types are explicitly specified in the `useReducer` hook.

TypeScript infers the types from the `useReducer` function.

How does TypeScript determine the types for `state` and `dispatch` in the following code?

```
const [state, dispatch] = useReducer(counterReducer, { count: 0 });
```

How does TypeScript determine the types for <code>state</code> and <code>dispatch</code> in the following code?
<pre><code>const [state, dispatch] = useReducer(counterReducer, { count: 0 });
</code></pre>

To be an object with an `action` property

To be a function call to a particular action

What are the requirements for an action in a Redux’s reducer?

What are the requirements for an action in a Redux’s reducer?

What is the correct way to define unions in TypeScript?

What is the correct way to define unions in TypeScript?

Which function can React’s reducer use to call a state updating action?

Which function can React’s reducer use to call a state updating action?

Test yourself on what you’ve learned about using reducers in React with TypeScript.

Getting Started

Simplifying Reducers in React

A Gentle Introduction to Generics

Navigating the Perils and Pitfalls of Using React’s Context API

Extending DOM Elements and Creating Polymorphic Components

A Guided Tour of the Three Biggest Features in TypeScript 5.0

TypeScript Mastery: Enhancing Code Quality and Scalability

Conclusion

Quiz: Simplifying Reducers in React