Example:

{

"name": "myapp",

"version": "1.0.0"

}

🧠 126. What is nodemon?

nodemon automatically restarts server after code changes.

Install:

npm install -g nodemon

🧠 127. What are Streams in Node.js?

Streams process data piece by piece instead of loading all at once.

Types:

• Readable

• Writable

• Duplex

• Transform

Benefits:

✅ Memory efficient

✅ Faster processing

🧠 128. What is Buffering?

Buffer temporarily stores binary data in memory.

Example:

const buffer = Buffer.from("Hello");

🧠 129. What is Async Middleware?

Middleware using async/await.

Example:

app.get("/", async (req, res) => {

const data = await fetchData();

res.json(data);

});

🧠 130. What is Rate Limiting?

Rate limiting restricts number of requests from users.

Benefits:

✅ Prevents abuse

✅ Protects APIs

✅ Improves security

Example:

const rateLimit = require("express-rate-limit");

Double Tap ❤️ For Part-6