[Solved] How do you correctly attach an error handler to a Promise called fetchData to catch any rejection? — Ans: fetchData().catch(error => console.error(error)); | Node.js

Node.js - Error Handling Patterns

How do you correctly attach an error handler to a Promise called fetchData to catch any rejection?

AfetchData.catch(error => console.error(error));

BfetchData.catch().then(error => console.error(error));

CfetchData.then().catch(error => console.error(error));

DfetchData().catch(error => console.error(error));

Step-by-Step Solution

Solution:

Step 1: Identify if fetchData is a function
Usually, fetchData is a function returning a Promise, so it must be called first.
Step 2: Attach catch to the returned Promise
Calling fetchData() returns a Promise, then catch handles errors.
Final Answer:
fetchData().catch(error => console.error(error)); -> Option D
Quick Check:
Is fetchData called before catch? Yes. [OK]

Quick Trick: Call function before catch to handle Promise errors [OK]

Common Mistakes:

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How do you correctly attach an error handler to a Promise called fetchData to catch any rejection?