[Solved] Identify the error in this Express code snippet:app.get('/error', (req, res) => { res.status(400); res.send('Bad Request'); res.status(200); }); | Node.js

Node.js - HTTP Module

Identify the error in this Express code snippet:

app.get('/error', (req, res) => { res.status(400); res.send('Bad Request'); res.status(200); });

ACalling res.send() twice causes error

Bres.status(400) must be called after res.send()

CSetting status 200 after sending response has no effect

DMissing res.end() to finish response

Step-by-Step Solution

Solution:

Step 1: Trace response flow
res.status(400) sets status, then res.send() sends response with status 400.
Step 2: Analyze res.status(200) after send
After sending, changing status has no effect because response is finished.
Final Answer:
Setting status 200 after sending response has no effect -> Option C
Quick Check:
Change status after send() does nothing [OK]

Quick Trick: Set status before sending response [OK]

Common Mistakes:

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