Node.js - Child Processes
How can you modify the forked child process to handle multiple messages and respond to each one separately?
How can you modify the forked child process to handle multiple messages and respond to each one separately?
hard📝 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Understand message handling in child
Child can listen for 'message' events multiple times and respond to each message separately.
Step 2: Evaluate other options
Sending all messages at once without waiting can cause race conditions, restarting child is inefficient, sending all messages as array changes protocol.
Final Answer:
Add a listener for 'message' event in child that processes each message and sends a response -> Option BQuick Check:
Multiple message handling = event listener in child [OK]
Quick Trick: Child listens to 'message' event to handle multiple messages [OK]
Common Mistakes:
- Restarting child for each message
- Sending all messages at once without protocol
- Not using event listener in child
Master "Child Processes" in Node.js
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