Solution:Step 1: Understand the first timeout and clearTimeoutThe first timeout increments count and logs it after 500ms, but it is cancelled before running.Step 2: Analyze the second timeoutThe second timeout logs count after 1000ms; count remains 0 because first timeout never ran.Final Answer:0 ->

[Solved] Consider this code: let count = 0; const id = setTimeout(() => { count++; console.log(count); }, 500); clearTimeout(id); setTimeout(() => console.log(count), 1000); What will be printed? | Node.js

Node.js - Timers and Scheduling

Consider this code:

let count = 0;
const id = setTimeout(() => {
  count++;
  console.log(count);
}, 500);
clearTimeout(id);
setTimeout(() => console.log(count), 1000);

What will be printed?

A0

B1

Cundefined

DError

Step-by-Step Solution

Solution:

Step 1: Understand the first timeout and clearTimeout
The first timeout increments count and logs it after 500ms, but it is cancelled before running.
Step 2: Analyze the second timeout
The second timeout logs count after 1000ms; count remains 0 because first timeout never ran.
Final Answer:
0 -> Option A
Quick Check:
Cancelled timeout does not change variables [OK]

Quick Trick: Cancelled timeout code does not run; variables unchanged [OK]

Common Mistakes:

Assuming count increments despite clearTimeout
Expecting error due to variable usage
Confusing order of timeouts

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More Node.js Quizzes

Consider this code:

Step 1: Understand the first timeout and clearTimeout

Step 2: Analyze the second timeout

Final Answer:

Quick Check:

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