[Solved] Find the bug in this Express handler:app.get('/json', (req, res) => { res.sendStatus(201); res.json({ success: true }); }); | Node.js

Node.js - HTTP Module

Find the bug in this Express handler:

app.get('/json', (req, res) => { res.sendStatus(201); res.json({ success: true }); });

Ares.json() is called after response is sent, so ignored

Bres.sendStatus() does not set status code

Cres.json() must be called before res.sendStatus()

Dres.sendStatus() cannot send status 201

Step-by-Step Solution

Solution:

Step 1: Understand res.sendStatus() behavior
res.sendStatus(201) sets status and sends response immediately.
Step 2: Check res.json() after send
Calling res.json() after response is sent has no effect; it is ignored.
Final Answer:
res.json() is called after response is sent, so ignored -> Option A
Quick Check:
Response sent once; later sends ignored [OK]

Quick Trick: Send response only once per request [OK]

Common Mistakes:

Master "HTTP Module" in Node.js

9 interactive learning modes - each teaches the same concept differently

More Node.js Quizzes

Find the bug in this Express handler: