Event Loop in Node.js | 15 JavaScript Interview Code Questions
Struggling to understand the Event Loop in Node.js? This video breaks it down with clear explanations and real interview-level questions that will boost your confidence and deepen your JavaScript and NodeJS knowledge.
What You’ll Learn:
How the Event Loop works in Node.js
Difference between Call Stack, Task Queue, and Microtask Queue
Real coding examples you may face in interviews
Links:
The Node.js Event Loop Doc: https://nodejs.org/en/learn/asynchron...
Video Event Loop in Browser: • Event Loop in Browser | 10 JavaScript Inte...
⌚️Timestamps:
0:00 Introduction
0:45 setTimeout(), timers phase
2:36 Input/Output events, poll phase
3:13 setImmediate, check phase
4:01 setTimeot and setImmediate
5:02 setTimeot and setImmediate inside I/O events
6:13 Example 6: process.nextTick
7:13 process.nextTick with fs.readFile and setTimeout
8:17 Example 8: Promise, microtask queue
8:41 I/O events, Promise, and setTimeout
9:24 I/O events, Promise, setTimeout, and process.nextTick
10:01 Example 11
10:55 Example 12
12:33 Example 13:queueMicrotask and Promise.resolve
13:26 queueMicrotask, Promise.resolve, and process.nextTick
14:05 Example 15: blocked event loop
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