[Solved] Given this code, what will be printed?process.on('unhandledRejection', (reason, promise) => { console.log('Promise rejected:', reason); }); Promise.reject('Error occurred'); | Node.js

Node.js - Error Handling Patterns

Given this code, what will be printed?

process.on('unhandledRejection', (reason, promise) => {
  console.log('Promise rejected:', reason);
});

Promise.reject('Error occurred');

APromise rejected: [object Object]

BNo output

CPromise rejected: Error occurred

DPromise rejected: undefined

Step-by-Step Solution

Solution:

Step 1: Check event listener parameters
The listener logs the reason parameter directly, which is the rejection reason.
Step 2: Analyze rejection value
The promise is rejected with the string 'Error occurred', so the reason is that string.
Final Answer:
Promise rejected: Error occurred -> Option C
Quick Check:
Rejection reason string logs as is [OK]

Quick Trick: Rejection reason logs directly in unhandledRejection handler [OK]

Common Mistakes:

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