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TypeScript Project: Full-Stack App - Concepts

Explore the key concepts of typescript project: full-stack app with practical examples and exercises.

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

Introduction to TypeScript Project: Full-Stack App

In this section, we cover the fundamental aspects of typescript project: full-stack app. 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 project: full-stack app
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 Project: Full-Stack App - Code Example

Example

// Full-Stack TypeScript App Structure
import express, { Request, Response } from "express";

interface CreateUserDTO {
  name: string;
  email: string;
  password: string;
}

interface ApiResponse<T> {
  success: boolean;
  data?: T;
  error?: string;
}

const app = express();
app.use(express.json());

app.post("/api/users", (req: Request<{}, {}, CreateUserDTO>, res: Response<ApiResponse<{ id: number }>>) => {
  const { name, email } = req.body;
  res.json({ success: true, data: { id: 1 } });
});

app.listen(3000, () => console.log("Server running"));

Try It Yourself: TypeScript Project: Full-Stack App

Try It Yourself: TypeScript Project: Full-Stack AppJavaScript⚠ 1 error

⚠ Syntax Issues (1)

Line 1: JS Error: Unexpected identifier 'ApiResponse'

💡 Check syntax near the highlighted line.

JavaScript Editor

✕ 1 errorTab = 2 spaces

// API response types
interface ApiResponse<T> {
  success: boolean;
  data?: T;
  error?: string;
  timestamp: string;
}

function createResponse<T>(data: T): ApiResponse<T> {
  return {
    success: true,
    data,
    timestamp: new Date().toISOString()
  };
}

function createError(message: string): ApiResponse<never> {
  return {
    success: false,
    error: message,
    timestamp: new Date().toISOString()
  };
}

console.log(createResponse({ id: 1, name: "Alice" }));
console.log(createError("User not found"));

Result

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Edit the code on the left, then click Run

JavaScript|26 lines|522 chars|1 error, 0 warnings

UTF-8

Quick Quiz: TypeScript Project: Full-Stack App

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