Node.js - Child Processes
Which of the following is the correct way to listen for errors on a child process created with
spawn?Which of the following is the correct way to listen for errors on a child process created with spawn?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Recall the correct event listener syntax
Node.js child processes useonmethod to listen for events like 'error'.Step 2: Identify the correct event and method
child.on('error', (err) => { console.error(err); }); useschild.on('error', callback), which is the proper syntax to catch errors.Final Answer:
child.on('error', (err) => { console.error(err); }); -> Option AQuick Check:
Useon('error')to catch errors [OK]
Quick Trick: Use child.on('error', callback) to catch errors [OK]
Common Mistakes:
- Using wrong method like .error() or .catch()
- Listening to 'exit' instead of 'error' for errors
- Missing parentheses or wrong event name
Master "Child Processes" in Node.js
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