[Solved] What will be logged by the worker thread in this code?import { workerData } from... What will be logged by the worker thread in this code?import { workerData } from 'worker_threads'; | Node.js

Node.js - Worker Threads

What will be logged by the worker thread in this code?

import { workerData } from 'worker_threads';
console.log(workerData.message);

And the main thread creates the worker as:

new Worker('./worker.js', { workerData: { message: 'Hello' } });

AError: workerData is not defined

BHello

Cundefined

Dnull

Step-by-Step Solution

Solution:

Step 1: Understand workerData usage
The workerData object contains the passed data, so workerData.message will be 'Hello'.
Step 2: Confirm no errors
Since workerData is imported correctly, no error occurs and the message prints as expected.
Final Answer:
Hello -> Option B
Quick Check:
workerData.message logs passed string [OK]

Quick Trick: workerData holds passed data, access properties directly [OK]

Common Mistakes:

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What will be logged by the worker thread in this code?