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TypeScript with React - Concepts

Explore the key concepts of typescript with react with practical examples and exercises.

45 min•By Priygop Team•Last updated: Feb 2026

Introduction to TypeScript with React

In this section, we cover the fundamental aspects of typescript with react. You'll learn core concepts, see real-world examples, and understand how to apply them in your projects.

Key Concepts

Understanding the core principles of typescript with react
Practical applications and real-world use cases
Step-by-step implementation guides
Common patterns and best practices
Tips for debugging and troubleshooting
Performance optimization techniques

TypeScript with React - Code Example

Example

// TypeScript with React
import React, { useState, useEffect } from "react";

interface User {
  id: number;
  name: string;
  email: string;
}

interface UserCardProps {
  user: User;
  onSelect: (id: number) => void;
}

const UserCard: React.FC<UserCardProps> = ({ user, onSelect }) => {
  return (
    <div onClick={() => onSelect(user.id)}>
      <h3>{user.name}</h3>
      <p>{user.email}</p>
    </div>
  );
};

Try It Yourself: TypeScript with React

Try It Yourself: TypeScript with ReactJavaScript⚠ 1 error

⚠ Syntax Issues (1)

Line 1: JS Error: Unexpected identifier 'Todo'

💡 Check syntax near the highlighted line.

JavaScript Editor

✕ 1 errorTab = 2 spaces

// React component with TypeScript
interface Todo {
  id: number;
  text: string;
  done: boolean;
}

const todos: Todo[] = [
  { id: 1, text: "Learn TypeScript", done: true },
  { id: 2, text: "Build a project", done: false },
  { id: 3, text: "Deploy to production", done: false }
];

const completed = todos.filter(t => t.done);
const pending = todos.filter(t => !t.done);

console.log("Completed:", completed.map(t => t.text));
console.log("Pending:", pending.map(t => t.text));

Result

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Edit the code on the left, then click Run

JavaScript|18 lines|482 chars|1 error, 0 warnings

UTF-8

Quick Quiz: TypeScript with React

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