Bird
0
0

You try to set a breakpoint with the command b 100 but get an error 'Line number out of range'. What is the likely cause?

medium📝 Debug Q6 of 15
Node.js - Debugging and Profiling
You try to set a breakpoint with the command b 100 but get an error 'Line number out of range'. What is the likely cause?
ALine 100 is a comment
BBreakpoint command syntax is wrong
CDebugger is not started
DThe file has fewer than 100 lines
Step-by-Step Solution
Solution:

  1. Step 1: Understand breakpoint errors

    Setting breakpoint on a line beyond file length causes 'out of range' error.

  2. Step 2: Check other options

    Syntax is correct, debugger must be running, comments can have breakpoints.

  3. Final Answer:

    The file has fewer than 100 lines -> Option D

  4. Quick Check:

    Breakpoint line must exist [OK]
Quick Trick: Breakpoint line must be within file length [OK]
Common Mistakes:
  • Using wrong command syntax
  • Trying to set breakpoint before debugger starts
  • Assuming comments block breakpoints

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More Node.js Quizzes
Cluster Module - Handling worker crashes and restart - Quiz 7medium Cluster Module - How cluster module works - Quiz 4medium Debugging and Profiling - CPU profiling basics - Quiz 6medium Debugging and Profiling - Chrome DevTools for Node.js - Quiz 14medium Error Handling Patterns - Error-first callback convention - Quiz 8hard Error Handling Patterns - Error-first callback convention - Quiz 15hard Error Handling Patterns - Promise catch for async errors - Quiz 14medium Error Handling Patterns - Async/await error handling patterns - Quiz 10hard HTTP Module - Serving static files - Quiz 15hard HTTP Module - Response methods and status codes - Quiz 4medium