Bird
0
0

Consider this code snippet run with the Node.js debugger:

medium📝 Predict Output Q4 of 15
Node.js - Debugging and Profiling
Consider this code snippet run with the Node.js debugger:
let x = 5;
debugger;
x += 10;
console.log(x);

What will be the output after continuing execution?
AError
B5
Cundefined
D15
Step-by-Step Solution
Solution:
  1. Step 1: Analyze code execution

    Variable x starts at 5, debugger pauses before x += 10.
  2. Step 2: Continue execution and check output

    After continuing, x becomes 15, then logged to console.
  3. Final Answer:

    15 -> Option D
  4. Quick Check:

    Output after debugger = 15 [OK]
Quick Trick: Debugger pauses but code runs fully after continue [OK]
Common Mistakes:
  • Thinking debugger stops output
  • Expecting original value 5
  • Confusing with undefined or errors

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