Intro_to_NodeJS_Docker.tar.gz

TCP_job

HTTP_test

Project_3

Project_1

Project_2

Project_0

timer_demo

UDP_job

Project_demo

sayMyName

logger

nodemon app

npm terminal

UDP_chat_nodemon

TCP_chat_nodemon

run-app.js

terminal-app.js

Node.js is an open-source, cross-platform, JavaScript runtime environment that executes JavaScript code outside of a web browser. This course is your guide for learning the fundamentals of Node.js.

In this course, you'll start by understanding the inner workings of Node.js. More specifically, you’ll explore its features, how event loops work, and how multithreading works. You’ll then move on to the fundamentals of Node.js like file systems, global objects, and the Buffer class.

In the latter half of the course, you’ll explore more advanced concepts like modules,  events,  and packages. At the end of this course, you will get hands-on with Node.js and create your own food delivery web application.

By the end of this course, you will have a new, in-demand skill to put on your resume and a cool project to add to your portfolio.

Learn Node.js: The Complete Course for Beginners

Which of the following does not need to be imported?

Which of the following does not need to be imported?

The first argument passed from the command line


What does <code>process.argv[1]</code> return?

An error occurred and returned the following:
```
at someFunction (/usercode/index.js:12:7)
```
Where does the problem #key# originate: begin #key#?

An error occurred and returned the following:
<pre><code>at someFunction (/usercode/index.js:12:7)
</code></pre>
Where does the problem <keyword><word>originate</word><meaning>begin</meaning></keyword>?

What will be the output of the following?
```
const buf4 = Buffer.from([255, 257]);
console.log(buf4)
```


What will be the output of the following?
<pre><code>const buf4 = Buffer.from([255, 257]);
console.log(buf4)
</code></pre>

Once the object emits a specific event, its **listener** functions are called _______.



Once the object emits a specific event, its listener functions are called _______.

No, the callback function is not taking care of the error.


No, the argument to read the data is not passed to the callback.


Will this piece of code return the text in the file test.txt? If not, what is the error in this code?
```
fs.readFile('test.txt', 'utf-8', (data) => {
  console.log(data)
})
```


Will this piece of code return the text in the file test.txt? If not, what is the error in this code?
<pre><code>fs.readFile('test.txt', 'utf-8', (data) =&gt; {
 console.log(data)
})
</code></pre>

Introduction

Fundamentals

Advanced Topics

Packages

Project

Appendix

Quiz Yourself on Node.js Fundamentals