Bird
0
0

What method does a worker thread use to send data back to the main thread in Node.js?

easy📝 Conceptual Q2 of 15
Node.js - Worker Threads
What method does a worker thread use to send data back to the main thread in Node.js?
Asend()
Bemit()
CpostMessage()
Dwrite()
Step-by-Step Solution
Solution:

  1. Step 1: Recall worker communication methods

    Worker threads use a method to send messages to the parent thread.

  2. Step 2: Identify the correct method name

    The method to send messages is postMessage(), similar to web workers.

  3. Final Answer:

    Workers use postMessage() to send data -> Option C

  4. Quick Check:

    Worker sends data with postMessage() [OK]
Quick Trick: Use postMessage() to send data from worker [OK]
Common Mistakes:
  • Using send() which is not a worker method
  • Confusing emit() with EventEmitter
  • Using write() which is for streams

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More Node.js Quizzes
Child Processes - fork for Node.js child processes - Quiz 14medium Child Processes - execFile for running executables - Quiz 14medium Debugging and Profiling - Chrome DevTools for Node.js - Quiz 14medium Error Handling Patterns - Graceful shutdown on errors - Quiz 4medium Error Handling Patterns - Async/await error handling patterns - Quiz 6medium Timers and Scheduling - Why timing matters in Node.js - Quiz 14medium URL and Query String Handling - URL class for parsing - Quiz 6medium Worker Threads - Passing data to workers - Quiz 10hard Worker Threads - Creating worker threads - Quiz 14medium Worker Threads - Why worker threads matter - Quiz 2easy