Node.js Crash Course 

“If you watched until the end, I appreciate it.” How could I not watch this until the end? Every video from you is GOLD, Brad. Thank YOU!

"If you stayed to the end, I, genuinely, really appreciate that... I really do! If you can spend an hour and a half watching a video of mine I really appreciate that..." - man, I didn't spent just an hour and a half here! I was watching it through the course of like, ten/fifteen hours. I was testing the features you were presenting, doing little experiments, reading the documentation and watching other videos. I can say that your video is a good study guide.

okay this is crazy. THE MINUTE I REALIZE I NEED TO LEARN NODE.JS ASAP AND YOU MAKE THIS VIDEO. THANK YOU BRAD!! 🙌🙏🔥

This tutorial is amazing. I love that Brad takes the time to explain the fundamentals, which are skipped over by others all too often. Whenever someone is wanting to learning programming, Brad is always one of the very first I recommend. Thank you for your awesome work, Brad!

Thank you very much for this flawless service to the dev community, Traversy. You are surely one of the best professors I ever had.

I stayed the whole one hour and half watching typing and learning, and I thank you for your great work done in explaining Node.js in plain English ! Thanks once again Brad and be safe

I don't know how. My teacher teaches this for 3 months and u did it in an hour

You are an amazing teacher! I'm trying to learn this stuff and you've been the only person that has explained it in terms I'm able to grasp! Great job!😁

Not only a great theoretical and technical stuff, also a great accent to non native English speakers. I really appreciate this video!

Using the quarantine time after this. Thank you, Brad. Stay safe.

So awesome. This is the first tutorial that got me understanding how node is actually used to build and deploy apps. Every other tutorial I came across just claims as long as you understand javascript then node is easy, briefly explain what npm and modules are, and then jump right into express. By contrast, this one really broke down how the core modules actually apply to building a server without express. What a gem. Thanks, Brad!

This was the most amount of information that I've seen packed into a one-and-a-half-hour video. It took me several hours to fully digest. The video was exceptionally thorough and helped me understand the subject.

I stayed too the end! You pushed the site to herouku. I just started programming and I'm a CS student at 32.

I use your videos as pre-cursors for current topic of the boot camp that I am in. Your videos are essential to me succeeding. Just watching a video before I have to read/research a topic makes it so much easier for me. Thank you so much!

Amazing video, Brad. I totally enjoyed it! The fact that you go through few of the most basic modules says a lot about you approach of teaching in general and I absolutely love. It was refreshing to see a minor nodejs reference work rather than an explanation by means of an example project. You are one of the best programming teachers for sure!

4 years later and its still one of the best node js videos ive seen, thank you king

I have an interview on nodejs in a few days. No idea what the hell node even is. Brad to the rescue!!

Purchased your express masterclass course, but before this was a necessacity. Thank you so much for all you have done for us. I have learned a lot from you. Thank you!!

If anybody is struggling with this, especially on Syntax, if you haven't already gone through a short course on ES6, you might find that helpful. Brad mentioned that at the beginning and because I was totally confused I went away and spent a few hours learning ES6 and other things he suggested. For me, it made understanding the functions and methods in this tutorial significantly less difficult. Anyway, this node JS is fascinating; I was apprehensive about taking this course because on first viewing it was like 'Greek' to me. So glad I came back. Can't believe some of the methods it has; like giving you the ability to get system information. It's almost tempting to try to build one of those applications you see online that show you system information - I always wondered how that works. NEVER in my life would I have imagined considering trying a project like that. This JavaScript stuff is truly a rabbit-hole.

Hey this was great. As a front-end dev for many years, this answered a lot of questions I'd had about how one deploys an app vs building a traditional web page etc. so thank you!

Dude not only did I watch till the end, I coded along! You have the best tutorials ever! Please do more! LOVE IT!

video was awesome, learned a lot. Will be using it to create an api that holds images urls, not sure if this is the best way to go about but I am new to backend and figured this can serve as practice lol once that is completed I'll share the github repo and move on to your express video! thanks!!

Brad. Thank you so much for your work. I feel I have learned so much from your channel and courses. You're a legend.

You're the best online teacher and the inspiration Mr. Brad, thanks for making such quality content.. appreciated a lot. love from India

Watched this video till the end and indeed thanks to you Brad for being there for US!! You dont know most of us but we all connect with you like one of our own mates.. Thanks Brad!! ♥ from India!

“If you watched until the end, I appreciate it.” I mean , I am the one who who should be thanking you man , you're the one helping me , all the love in the world man thank you

Man, u r unstoppable. I know how much of energy we need to learn and prepare a course. All the best for ur future dear brother.

Brad I discovered your channel 3 days ago and my life changed a lot since because of you, just wanted to say I'm really*1000 grateful.

33:27 if anyone wonders why the file got created despite the error: That's asynchronous functions in a nutshell for you. While asynchronous programming makes your programs execute a LOT faster, this type of behavior might happen, just keep it in mind. So basically if you do this: somefunctionA(); somefunctionB(); If you run those asynchronously and if B relies on A being done, and B is faster than A, you will run into errors.

I was honestly frightened of all that server side stuff, so i postponed working through this video a lot. But you, Mr. Traversy, did such a good job! Watching this video i realized it is not too difficult. Now i have a structured understanding of the basics and the motivation to dig deeper. Thank you!

Thanks for all your hard work on these tutorials, Brad. You're awesome

Brad is an amazing presenter which makes a great teacher. You can just upgrade him as a mentor. He comes right thru the learning mind. Straight to the point. Clean code. Totally awesome. I'd buy you a drink just cause!

Just finished the react crash course yesterday, and was looking for one. Awesome timing, thanks!

Brad, thank you for this video, I'm going through a bootcamp right now, learning Node, my instructor is quite good. His teachings and you gave it an extra dimension that I needed. Keep up the good work.

One of the best free tutorial videos I've ever seen! Thank you Brad !

Best NodeJs Video out there on RU-vid, So simple yet so informative, love how calmly you teach. Appreciate it, Brad.Thanks.

Brad always make me happy !

Took 2 days to watch it completely while simultaneously doing it. Thank you, Sir.

1:22:37 If the about page is giving the 404 page not found, be sure to add this line of code under the switch statement: if (contentType == 'text/html' && extname == '') filePath += '.html';

Honestly , i love the way you teach , there were a lot of things that i couldn't understand till i found your channel , you helped me to achieve my goals and dreams ( being a web developer ) at this moment nothing can express my appreciation , thanks Brad . ✍️♥️

I was just looking through your old node js crash course and the notification for this came. Thanks for the great content

Watching your tutorial has really had a great impact on my confidence as a JavaScript developer. I started watching your videos in early 2021, with no knowledge of what a function or loop is, and now, am already able to create basic apps like calculators and interactive web elements with HTML, CSS and JS. Thanks a million, Brad.

was waiting this one from you, Brad. We want more node.js tutorial videos.

Even two years down the line, we still watch to the end Brad. That's the quality of your content. Bravo.

I can't thank you enough Brad, I truly appreciate your effort and commitment teaching us. Thanks again man.

I watched it during quarantine and started a project based on Node JS. Really loved your video! Good job! Thanks a lot! Following you from Iran. Stay safe Brad!

Time flew by, flawless tutorial. Thank you!

Watched it till the end... Can't thank you enough for the hard work you've put in this and all other videos... Thanks again :)

This year I gotta learn JS technologies... And This is the right place for me...

holy smokes, that was crazy value. I went from knowing absolutely no node to deploying a server app. Thanks for the content man!

Brad always delivering incredible content. Really appreciated, man!

Thank you very much for this tutorial. I am completely new to Node and in fact I was learning your front end java script thru udemy and accidentally landed on this video.I realized your Voice was very familiar :) and found that's you. I like all your videos and they are very practical and right on target. I am very glad as your tutorials are answer to most of my questions.

I need to like this before i start watching 🤗🤗

Thanks friend. Great video. I just started a web development bootcamp and this was assigned to us. Will definitely be watching your other vids.

i spent 2 days watching this video (4hours a day) man i appreciate everything that you do for us thanks again.

Another great intro into a subject. From other comments I can see I am not the only one appreciating the effort you put into your presentations. Keep up the good work.

27:02 "can't talk while I spell concatenate" lol

i'm a student and my instructor assigned this video for 3 assignments, great video and i'm a subscriber now!

Thank you so much to make this quality course about node.js. It was a pleasure to work with you during 1 and half an hour ! I encourage you to keep making videos and learning courses. Greatings.

You know, when you're working...you can neglect things for a while. Your presentations are EXCELLENT...help me get standing steady again with things... You help in ways you may not have thought of. A very grateful, Thanks...

Another Traversy Media smash hit! Thank you! Listen at 2x if ur a mid or intermediate moonlighter

I am so grateful and appreciative of your content and personality Brad!! I am 2/3rd finished with my bootcamp and just learned Node and Express this week. I have followed many of your tutorials for code along and just lecture style learning! Thank you much for your inspiration as well, sharing your story and humility and generosity. I will continue to keep learning and I hope to get my first job as a developer soon, ideally for a cool mission driven company or org.

Thank you for this video, Brad! This was an excellent crash course and a really great intro to Node! I appreciate that you went over a lot of the important-to-know modules with path, fs, etc. Really great base of knowledge to springboard off of. Excited to keep learning Node!

here is the thing Brad, I usually never ever comment or post anything, but thanks to this video I will comment maybe for the first time in my life, I do appreciate your video, thank you very much, thanks to you I just got a global idea about what node.js is and what can it do, I mainly work on react and never thought that node js can do such amazing things, THANK YOU AGAIN.

You are a God disguised as a human being who has descended the earth to help pawns like me reach the 8th rank and become the desired version of ourselves. Thanks for creating these amazing tutorials. Happy holidays 2023!

thank you very much, Brad! I started learning JS with you and now that I want to expand my knowledge with another technology you are the one I turn to. I love your teaching style. Keep up the amazing work!

Great tutorial, I've learnt a lot. Thank you! I do have a little question at 1:19:36, I think the HTTP status code to write to the header should be 404 instead of 200, even though loading of 404.html is successful, the client should actually receive 404 in case their code depends on the correct status code, isn't it?

I genuinely and really appreciate this crash course. To make me able to deploy my node web app on Internet on my first go.

HI Brad ,you have made many videos advising on how to start up Web business and I think they are really useful , however there is one question you may not have answered Q: How long (in time)should it take for an "average" Web developers to complete a Web project (front and back end) from start to finish in a production environment (and get paid !) ?

Brad, you are simply the best tech instructor among all! Thank you from the bottom of my heart. 🙏

Great tutorial, as always Brad- thank you. This makes me realise how much easier life is with React.

Thank you so so much! I watched the video till end and feel that i have learned something very useful and you have not wasted even a single minute of time. This deserves a great appreciation!!

10:53node --version 10:57npm --version 11:05node 12:10ctrl/command+c 12:20vscode 12:35npm init ❤️ Package.json Package name:(node_crash_course) version:(1.0.0) Description:node crash course Entry point:(index is) Test command: Git repository: Author: Arthur🤔 Licence: ISC 13:40npm install uuid 14:30npm install -D nodemon 15:05npm install ? 15:20delete node_modules folder,npm install,recreate node_modules folder 1:04:30 "scripts": { "start": "node index" "dev": "nodemon index" }1:05:15npm run dev 15:45❤️index.js, package-lock.json 16:10Index.js Console.log('hello from Node.js...'); node index.js/index 17:35 const person = require ('./person'); 21:35 import person from './person'; console.log(person18:06.name); 19:16 const person = person ('arthur'); const person1 = new person ('arthur' , 1); person1.greeting( ); 19:43node index 18:02node index 52:45🔴index.js const logger = require('/logger'); const logger = new logger( ); logger.on('message', (data) => console.log('called listener: ${data}')); 54:35 logger.on('message', (data) => console.log('called listener:', data));54:48node index Called listener { id:791cac09-ddd8-4e9e-8b99-bd432564b13a', msg: 'hello world' } logger.log('hello world');54:23node index 59:00dalete all const http = require('http'); const path = require('path'); const fs = require ('fs'); const server = http.createserver((req, res) => { 1:01:58console.log(req.url); 1:02:42 if(req.url === '/' ) { 1:08:25fs.readFile(path.join(__dirname, 'public', 'index.html'),(err,content) => { 1:09:35if(err) throw err; }) 1:06:35res.writehead(200, { 'content'-type': 'text/html' } ); res.end('home1:09:20content'); } ); } 1:10:10 if(req.url === '/about' ) { 1:08:25fs.readFile(path.join(__dirname, 'public', 'about.html'),(err,content) => { 1:09:35if(err) throw err; }) 1:06:35res.writehead(200, { 'content'-type': 'text/html' } ); res.end('home1:09:20content'); } ); } 1:10:30 if(req.url === '/api/users' ) { const users = [ {name: 'bob smith', age: 40 }, {name: 'John Doe', age: 30 } ]; res.writehead(200, { 'content-type': 'application/json'}); res.end(json.stringfy(users)); } 1:13:10//build file path let filepath = path.join(__dirname, 'public', req.url === '/' ? 'index.html' : req.url); console.log(filepath'); res.end ( ); 1:15:20//extension of file let extension = path.extname(filepath); //Initial content type let contenype = 'text/html'; //Ckeck ext and set content type switch (extname) { ? ? ? ? ? } //Read file fs.readFile(filepath, (err, content) => { if (err) { if (err.code == 'enoent') { //Page not found fs.readfile(path.join(__dirname, 'public', '404.html'),(err, content) => { 1:19:20//res.writehead(200, { 'content-type': 'application/json' }); res.end(content, 'utf8'); }) }else { //some server error res.writehead(500); res.end('server error: ${err.code}'); } }else {//success res.writehead(200, { 'content-type' :'text/html' }); res.end(content, 'utf8'); } ) } } } ); });1:03:20node index const port = process.env.port || 5000; server.listen(port, ( ) => console.log('server running on port ${port}') );1:02:10node index server running on port 5000 / /about localhost:5000/about 17:00❤️ person.js 20:10 //Module wrapper Function (function (exports, require, module, __filebame, __dirname) { }) 20:38console.log(__); const person = { name: 'arthur' age:1 } module.exports=person; delete above18:20 class person { constructor (name, age) { this.name = name; this.age = age; } greeting ( ) { console.log ('My name is $this.name} and I am $(this.age}' ) } } module.exports = person; 22:45 nodejs.org/dist/latest-v11.x/docs/api 23:35 ❤️./reference ❤️reference/path_demo.js cd reference node path_demo 24:05 const path = require ('path'); //Base tittle name console.log(path.basename(__filename)); //directory name console.log(path.dirname(__filename)); //File extension console.log(path.extname(__filename)); //create path object console.log(path.parse(__filename).base); //concatenate paths ../test/hello.html console.log(path.join(__dirname, 'test', 'hello.html')) 24:55node path_demo 28:50❤️ reference/fs_demo.js const fs = require('fs'); const path = require ('path'); //Create folder fs.mkdir(path.join(__dirname, '/test'), 'hello world!', function (err) { if (err) throw err; console.log('Folder created...'); } );31:40nofe fs_demo 32:20//Create and write to file fs.writeFile(path.join(__dirname, '/test', 'hello.txt'), 'hello world!', err => { if (err) throw err; console.log('File write to...'); } );33:15node fs_demo 33:45node fs_demo /test/hello.txt hello, world! 34:50//File append fs.appendFile(path.join(__dirname, '/test', 'hello.txt'), 'I love node.js', err => { if (err) throw err; console.log('File write to...'); } );35:13node fs_demo test/hello.txt hello world! I love node.js 35:30 //Read file fs.readFile(path.join(__dirname, '/test', 'hello.txt), 'utf8', (err, data) => { if (err) throw err; console.log('data'); } );36:25node fs_demo //Rename file fs.remame(path.join(__dirname, '/test', 'hello.txt), 'path.join(__dirname, '/test', 'helloworld.txt)', (err) => { if (err) throw err; console.log('File renamed...'); } );37:25node fs_demo /test/helloworld.txt hello world! I love node.js 38:00🔴 reference/os_demo.js const os = require ('os'); //Platform console.log(os.platform( ) );38:38node os_demo, darwin,the platform for mac //CPU Arch console.log(os.arch()); //CPU Core info console.log(os.cpus) ); //Free memory console.log(os.freemem) ); //Total memory console.log(os.totalmem) ); //Home dir console.log(os.homedir( )); //Uptime console.log(os.uptime( )); 41:30🔴 reference/url_demo.js const url = require ('url'); const myurl = new url(linuxandroid.xyz/hello.html?id=100&status=active'); //serialized URL console.log(myurl.href);42:50node url_demo console.log(myurl.tostring( )); //Host (root domain) console.log(myurl.host); //Hostname (44:00does not get port) console.log(myurl.hostname);43:40node url_demo44:05 //Pathname console.log(myurl.pathname)); //Serialized query console.log(myurl.search); //params object console.log(myurl.searchparams); //Add param Myurl.searchparams.append('abc', '123', ); console.log(myurl.searchparams); //Loop through params myurl.searchparams.foreach((value, name ) => console.log('${name}: ${value}')); 47:10 nodejs.org/dist/latest-v11.x/docs/api/events.html 47:45🔴 references/event_demo.js const eventemitter = require ('events'); //Create class Class myemitter extends eventemitter { } //Init object const myemitter = new myemitter( ); //event listener myemitter.on('events', ( ) => console.log('event fired!')) //Init event myemitter.emit('event');49:35node event_demo event fired! 50:05🔴logger.js const eventemitter = require ('events'); const uuid = require ('uuid'); console.log(uuid.v4()); class logger extends event emitter { log(mog) { //Callevent This.emit('message', { id: uuid.v4( ), msg }); } } module.exports = logger; 56:00🔴 reference/http_demo.js cd reference const http = require ('http'); //Create server object http.createserver((req, res) => { //Write response res.write('hello'); res.end( ) }).listener(5000, ( ) => console.log('server running...') );57:43node http_demo server running... localhost:5000 hello world 58:20ctrl+c cd .. 1:07:20🔴 public/index.html, public/about.html public/index.html 1:18:10🔴 Public/404.html 1:25:20 heroku.com heroku --version 1:26:20heroku login Email Password 1:26:45 git-scm.com git --version 1:27:10 🔴node_crash_course/.gitignore node_modules reference logger.js person.js 1:27:45 git init git add. git commit -m 'initial commit' heroku create meadow-87507.git ? git push heroku master heroku open

i know, you might even will not see this comment, but i'd like to appreciate you for spending your time, energy and minds in a lot of people all over the world. Your difference from another tutors in 2 main facts: -You give all the info very understandable and interesting -And after your i feel "Wow, i want to learn more!" instead "damn, i dont get this at all" Heartly appreciate from Russia and all my heart to you, man! Keep going your way!

Thanks for knowledge that you're putting out. Can you please create a course about nest.js? Like it so Brad could see.

I love this channel, thank you Brad.

Dunno about y'all but I DID the homework at 55:28. Star Student 😁

Excellent video and very approachable for non regular coders (or old folks like me that use to code a while ago!). Thank you

This tutorial was amazing, truly you are a lifesaver. On to your video on react!

Amazin content. It took me 2 days to watch and learn the whole 1 and 1/2 hours of content. I bought the full Node.js from your website to take what I learned here and expand on it.

Thanks Sir for all these videos. You are a great inspiration to me. Could you please make a video on firebase.

I'm recommending this kind of crash courses from you to other peers starting their journey! AMAZING job man! Thanks!

41:19 Brad's iMac's uptime 15 days, wow

Very well done. It stays focused, does not introduce too many concepts at once, and every step can be followed by simply paying attention.

Hey Brad, might be a broad question but if you were told in the morning you can only use one stack what would you pick, ie React/View for FE, Node/Django/PHP for BE, SQL/noSQL for your database, I know project requirements might determine that but just kinda interested what are your favourite tools.

thank you so much, you saved my life in my cloud app dev course!!! I didn't know how to set the content-type of different extensions, and you taught me exactly that!. Thanks again, really grateful.

can you do a Tensor Flow udemy course...I am interested in that.

I honestly can't stand watching videos for this long. Yours are different and more understandable. Thank you!

when i write os.cpus i get back ' ZX Spectrum 128k, your cassette deck needs heads cleaned'.

15 mins into the video and I am impressed already. Crisp, highly valuable instructions. Enjoying it.

Just brilliant as always!

I know over 8 stacks and node js wasn't a part of that list. Watching this video, it's safe to say I finally understand what node is about. Thanks, man, great video!

34:45 I start sweating cold when a possible callback hell starts 😰

Thank you sir! This helped me build my basics for node.js. Thank you!

Awesome guide as always Brad, many thanks :) Next stop: Your MERN udemy course :)

He says this isn't a whole project but it made a whole lot click and opened up a lot of potential for my future project architectures.

this channel is one of my top 5 to-go-to channels. Thank you!

I am not getting the same intellisense shown in this demo, do I need a VSCode plugin?

Thank you, Brad! This is an easy-to-understand tutorial. You seem to make the learning path straight which saves me from countless hours of potential confusion.

Another killer job breaking down something complex into understandable real world examples. Thank you.