[Solved] Identify the error in this code snippet: const { fork } = require('child_process'); const child = fork('child.js'); child.on('message', msg => console.log(msg)); child.send(); | Node.js

Node.js - Child Processes

Identify the error in this code snippet:

const { fork } = require('child_process');
const child = fork('child.js');
child.on('message', msg => console.log(msg));
child.send();

Afork cannot be used with on('message') listener

Bsend() requires a message argument; missing here

Cchild.js must export a function to receive messages

Dchild process must be closed before sending messages

Step-by-Step Solution

Solution:

Step 1: Check send method usage
send() requires a message argument; calling send() without arguments causes an error.
Step 2: Verify other options
fork works with message listeners, child.js does not need to export a function, no need to close child before sending.
Final Answer:
send() requires a message argument; missing here -> Option B
Quick Check:
send argument required [OK]

Quick Trick: Always provide a message to send() [OK]

Common Mistakes:

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