Delve into TypeScript generics and learn to build reusable functions and React components for searching, sorting, and filtering data, enhancing both business logic and UI efficiency.

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TypeScript’s generics are a powerful tool that enables developers to ensure their code is flexible and reusable. Using generics can help developers manage exactly what types are used in functions and components around the application.

In this course, we’ll first get an overview of TypeScript generics and create generic search and sort functions. Next, we’ll create a React component for searching that would leverage our generic search function. Then, we’ll create a generic function and a React component for sorting and filtering, respectively. Finally, we’ll bring all these functionalities together to create one component that can manage searching, sorting, and filtering of any data passed to it.

By the end of this course, you'll know how to write generic TypeScript functions and craft React components that use TypeScript generics. You’ll also be able to deploy concise solutions in both business logic and user interface senses for searching, sorting, and filtering data on client side in applications.

Building User Interfaces and Functions with TypeScript and React

# Import `widgets` and `people`

To begin rendering our `widgets` and `people`, we need to import them into `App.tsx`:



import widgets from './mock-data/widgets'
import people from './mock-data/people'

Now, in our `return` value, we can `map` over each of these and render some of their data. For the widgets, let’s just render their title by using `map` to map over all the `widgets`. With this pattern, we should also pass a unique value to the key prop in the `<h3>` tag due to React internals. Luckily, our widgets will each have an `id` as specified by `IWidget`.


> **Note:** The key property is required any time there is a list of objects rendered in React. This helps React determine how to make changes to our list. For example, React might internally create a diff-tree that only updates the minimum number of elements instead of rerendering the whole tree. More information can be found in React’s official
 [documentation](https://reactjs.org/link/warning-keys). 



Import the mock data lists and render each element using React.

Introduction

TypeScript Generics Introduction

Creating Mock Data for the Application

Building a Generic Search Function and UI Component

Building a Generic Sort Function and UI Component

Building a Generic Filter Function and UI Component

Generics in TypeScript

Organizing Everything into a Single Generic Component

Create a Content Management System (CMS)

Course Review and Final Comments

Appendix

Importing and Displaying the Mock Data

Import `widgets` and `people`

Generics in TypeScript

Create a Content Management System (CMS)

Importing and Displaying the Mock Data

Import widgets and people

Import `widgets` and `people`