Node.js · Junior · Question 34 of 75

What is the order of the output?

console.log("A");
setTimeout(() => console.log("B"), 0);
console.log("C");

1A, B, C
2B, A, C
✓Correct answer: A, C, B

Explanation

The timer callback goes into the event loop queue and runs only after the current synchronous code finishes, even with a 0 ms delay.

Further reading

Node.js Learn: The event loop, timers and process.nextTick() ↗

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