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

Before we dive into creating our first major functionality, a generic search, we should do some work to include data and some simple rendering in our application. The mock data will give us concrete values that make it easier to test the functions we write.

# The benefits of creating mock data

So far, we’ve used relatively simple types in our generic TypeScript examples. But when writing complex functions, like generic searching, sorting and filtering, it’s important to have complex data to test them against. 

Creating mock data to use has multiple benefits and helps us:


- Run our code with concrete examples.
- Visualize the results of our code.
- Test locally without having to connect to external APIs or data providers.



Create mock data for an application that conforms to the new interfaces, IWidget and IPerson.

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

Creating Mock Widgets and People

The benefits of creating mock data