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

They allow creating a linked list with nodes of different types.

They enforce that all nodes in the linked list are of the same type.

They prevent the creation of linked lists.

They automatically create new types for each value in the linked list.

How do generics enhance the following linked list implementation in TypeScript?

```tsx
type LinkedListNode<T> = {
 value: T;
 next?: LinkedListNode<T>;
};
```

How do generics enhance the following linked list implementation in TypeScript?
<pre><code class="language-tsx">type LinkedListNode&lt;T&gt; = {
 value: T;
 next?: LinkedListNode&lt;T&gt;;
};
</code></pre>

If we have a generic type `T extends number`, what kind of values can `T` have?

If we have a generic type <code>T extends number</code>, what kind of values can <code>T</code> have?

TypeScript infers the type based on the provided argument.

The function automatically assigns the type `any`.

It is mandatory to specify the type for every function call.

TypeScript only supports generics in certain scenarios.

In the identity function, why is it unnecessary to explicitly specify the type `T` in some cases?

In the identity function, why is it unnecessary to explicitly specify the type <code>T</code> in some cases?

How is the constraint expressed for limiting the generic type to specific values?

How is the constraint expressed for limiting the generic type to specific values?

TypeScript infers the type based on the assigned `value`.

The type must be explicitly provided for each function call.

The type is always set to `string` by default.

Type inference is not applicable in this context.

How does TypeScript handle type inference in the following `createLinkedListNode` function?

```
export const createLinkedListNode = <T>(value: T): LinkedListNode<T> => {
 return { value };
};
```

How does TypeScript handle type inference in the following <code>createLinkedListNode</code> function?
<pre><code>export const createLinkedListNode = &lt;T&gt;(value: T): LinkedListNode&lt;T&gt; =&gt; {
 return { value };
};
</code></pre>

Which generic type declaration is correct?

Which generic type declaration is correct?

TypeScript will infer the proper type automatically.

What will happen if we omit telling TypeScript what type the declared generic should be, as in this code snippet `const foo = identity('foo');`?

What will happen if we omit telling TypeScript what type the declared generic should be, as in this code snippet <code>const foo = identity('foo');</code>?

Test yourself on what you’ve learned about generics in 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: A Gentle Introduction to Generics