[Solved] What is wrong with this custom error class?class MyError extends Error { constructor() { super(); this.name = 'MyError'; } } When throwing new MyError('fail'), what happens? | Node.js

Node.js - Error Handling Patterns

What is wrong with this custom error class?

class MyError extends Error { constructor() { super(); this.name = 'MyError'; } }

When throwing new MyError('fail'), what happens?

AThe error name is not set

BThe message 'fail' is ignored because constructor has no parameters

CThe error message is set correctly

DThe error throws a syntax error

Step-by-Step Solution

Solution:

Step 1: Check constructor parameters
The constructor has no parameters, so the passed message 'fail' is not received or passed to super.
Step 2: Effect on error message
Since super() is called without arguments, the error message is empty or undefined, ignoring 'fail'.
Final Answer:
The message 'fail' is ignored because constructor has no parameters -> Option B
Quick Check:
Constructor must accept and pass message to super [OK]

Quick Trick: Constructor must accept message and pass to super(message) [OK]

Common Mistakes:

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What is wrong with this custom error class?