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Identify the error in this Node.js code snippet:

medium📝 Debug Q14 of 15
Node.js - Debugging and Profiling
Identify the error in this Node.js code snippet:
console.time('process');
// some code
console.timeEnd();
Aconsole.time() cannot be used without console.timeLog()
Bconsole.timeEnd() should be called before console.time()
CMissing label argument in console.timeEnd()
DNo error, code is correct
Step-by-Step Solution
Solution:

  1. Step 1: Check console.time and console.timeEnd usage

    console.time() starts a timer with a label. console.timeEnd() must be called with the same label to stop and print the timer.

  2. Step 2: Identify the mistake in the code

    console.timeEnd() is called without the label 'process', so it will throw an error or not work as expected.

  3. Final Answer:

    Missing label argument in console.timeEnd() -> Option C

  4. Quick Check:

    console.timeEnd() needs matching label [OK]
Quick Trick: Always pass the same label to console.timeEnd() as console.time() [OK]
Common Mistakes:
  • Calling console.timeEnd() without label
  • Calling console.timeEnd() before console.time()
  • Assuming console.timeLog() is mandatory

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