Question 1

Why is setImmediate() asked in interviews?

Accepted Answer

Because understanding it requires knowledge of Event Loop phases and Node.js internals.

Question 2

What is setImmediate() in Node.js?

Accepted Answer

setImmediate() schedules a callback to execute during the Check Phase of the Event Loop.

Question 3

When does setImmediate() execute?

Accepted Answer

It executes after the Poll Phase when the Event Loop enters the Check Phase.

Question 4

Is setImmediate() the same as setTimeout(fn, 0)?

Accepted Answer

No. setTimeout executes in the Timers Phase, while setImmediate executes in the Check Phase.

Why is setImmediate() asked in interviews?

Explore This Question