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Which of the following is the correct syntax to cancel a timeout set by setTimeout?

easy📝 Syntax Q12 of 15
Node.js - Timers and Scheduling
Which of the following is the correct syntax to cancel a timeout set by setTimeout?
AstopTimeout(timeoutId);
BcancelTimeout(timeoutId);
CclearTimeout(timeoutId);
DclearInterval(timeoutId);
Step-by-Step Solution
Solution:

  1. Step 1: Recall the function to cancel setTimeout

    The correct function to cancel a timeout is clearTimeout with the timeout ID.

  2. Step 2: Check each option's validity

    Only clearTimeout(timeoutId); uses the correct function name. cancelTimeout and stopTimeout do not exist. clearInterval(timeoutId); is for intervals, not timeouts.

  3. Final Answer:

    clearTimeout(timeoutId); -> Option C

  4. Quick Check:

    Cancel timeout = clearTimeout [OK]
Quick Trick: Use clearTimeout with the ID from setTimeout [OK]
Common Mistakes:
  • Using clearInterval to cancel setTimeout
  • Using non-existent functions like cancelTimeout
  • Not passing the timeout ID to clearTimeout

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