[Solved] Examine this Node.js server code snippet for manual routing:const http = require('http'); const server = http.... server.listen(3000);What is the main issue with this code? | Node.js

Node.js - HTTP Module

Examine this Node.js server code snippet for manual routing:

const http = require('http');
const server = http.createServer((req, res) => {
  if (req.url == '/home') {
    res.write('Welcome Home');
    res.end();
  }
});
server.listen(3000);

What is the main issue with this code?

AUsing '==' instead of '===' for URL comparison

BMissing res.writeHead() to set status and headers

CNot calling res.end() after writing response

DServer is not listening on the specified port

Step-by-Step Solution

Solution:

Step 1: Check URL comparison
The code uses '==' which works but '===' is preferred for strict equality.
Step 2: Check response headers
res.writeHead() is missing, so status code and content-type headers are not set, which can cause issues.
Step 3: Check response ending
res.end() is correctly called, so response ends properly.
Final Answer:
Missing res.writeHead() to set status and headers -> Option B
Quick Check:
Headers must be set before writing body [OK]

Quick Trick: Always set headers with res.writeHead() before res.write() [OK]

Common Mistakes:

Using '==' instead of '===' causes bugs
Forgetting to call res.end()
Not setting response headers

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Examine this Node.js server code snippet for manual routing:

Step 1: Check URL comparison

Step 2: Check response headers

Step 3: Check response ending

Final Answer:

Quick Check:

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