Adrian | JavaScript Mastery
@jsmasterypro
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Founder & CEO @ JS Mastery @GitHub Star, software engineer & educator Mentor @ Next.js enthusiast @
Croatia
Joined January 2019
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Best GitHub Repositories for Developers 🔥
1. Node.js Best Practices
2. Airbnb JavaScript Guide
3. RealWorld
4. You Don't Know JS
5. Front-End-Checklist
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1K
5K
Programming is not about typing, it's about thinking.
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2K
If you're learning JavaScript, you're on the right path 🙌
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1K
You can never really finish learning JavaScript.
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1K
Debugging 101
Debugging in HTML/CSS = “border: 1px solid red”
Debugging in JavaScript = console.log()
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Are you a web developer or learning to be one?
Say Hi👋
Let's make some connections.🤝
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Which one is your favorite JavaScript framework?
💙 React
💚 Vue
❤️ Angular
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You will be a great developer one day. Just keep learning and practicing.
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Which one is your favorite JavaScript Stack?
💙 MERN
💚 MEVN
❤️ MEAN
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Do you have a GitHub profile?
Share the link.
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652
Comment your "Hello, world!" in your first programing language
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The ability to persist when things get boring is what makes you a real developer.
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Javascript Array methods you should know about before learning ReactJS ⚛️
👉 map()
👉 filter()
👉 reduce()
👉 sort()
👉 slice()
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Want to learn JavaScript?
Build an app using JavaScript
Want to learn React?
Build an app using React
Want to learn NodeJS?
Build an app using NodeJS
Practice beats theory every time.
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JavaScript Quiz 🧠
What is the output of the following JavaScript code?
let a = [1, 2, 3];
let b = [...a];
b.push(4);
console.log(a);
console.log(b);
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587
What is the output of the following code? 🤔
let x = 10;
x++;
console.log(x);
A) 9
B) 10
C) 11
D) undefined
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Thanks
@github
for doing a Silicon Valley Developers version of the Walk of Fame at
@githubuniverse
. Loved it! ✨
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Learning JavaScript?
Drop a 👋, let’s connect 😊
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Websites to find remote jobs 🧑💻
👉 Hired
👉 FlexJobs
👉 Jobspresso
👉 Remote OK
👉 JustRemote
👉 JS Remotely
👉 DailyRemote
👉 Remote Work
👉 RemoteLeads
👉 We Work Remotely
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JavaScript Quiz 🧠
Comment the output of this code 💭
let a = '1' + 1;
a = a - 1;
console.log(a);
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Hey Web Developers 👋
Where are you Hosting your Websites? 🤔
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If you learned
📍 Html & CSS → Build your first website
📍 JavaScript → Build an API-powered app
📍 React/Vue → Build single-page apps
📍 Full Stack → Build SaaS project 🔥
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Popular CSS Frameworks 💅
💠 Bootstrap
🌈 Tailwind CSS
🎨 Bulma
🎉 Materialize CSS
🎭 Foundation
🖼️ Semantic UI
👔 Pure.css
🍀 UIKit
🍃 Spectre.css
📦 Tachyons
🌿 Material Design Lite
🔴 CSS Gradient
🌻 Blossom
🌸 Milligram
🌳 Vuetify
🔮 Shards
🎆 Semantic UI React
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What technologies are you gonna learn in 2023?
203
36
418
What CSS framework are you using? 🤔
A) Bootstrap
B) Tailwind CSS
C) Other, Comment below 👇
D) I don’t use CSS framework
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404
Besides coding: what skill should every software developer master?
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💡CSS Tip
Commonly used breakpoints for responsive websites
👉 1920px = Extra Large Screens
👉 1200px = Desktops, Large Screen
👉 1024px = Small Screens
👉 768px = Ipad
👉 480px = Mobile
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After you've mastered the basics of React.js, here are things to learn as well
1. React Router
2. ContextAPI
3. React Testing Library or Jest
4. Building custom React hooks
5. Redux Toolkit (Bonus)
Add more 💭↓
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Web developers and software engineers are mostly self-taught.
Do you fit in this description?
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398
When was the last time you used classes in React.js?
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How did you learn programming?
1. University
2. Self-taught
3. Bootcamp
4. Something else
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Web Dev Roadmap 🛣️
1 → HTML
2 → CSS (Grid, Flex)
3 → Git, GitHub
4 → JavaScript, DOM
5 → React || VueJS || Angular || Svelte
6 → Node.js
7 → Express.js
8 → MongoDB
9 → The CRUD pattern
10 → Build projects to gain experience
🏆 Full Stack developer
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FREE Sites for Web developers to get Design Inspiration 🔥
🎨 Land-book .com
🎨 Awwwards .com
🎨 Lapa .ninja
🎨 UiSpace .net
🎨 Uigarage .net
🎨 Dribbble .com
🎨 UIbundle .com
🎨 UiStore .design
🎨 FreebiesUI .com
🎨 Screenlane .com
Add more 👇💬
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367
Most used libraries in ⚛️ React projects:
1. react-query
2. styled-components
3. framer-motion
4. axios
5. react-hook-form
6. react-icons
7. react-testing-library
8. react-router-dom
Am I missing any? 🤔
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JavaScript Quiz 💡
Which of the following array method is guaranteed to iterate through each element of an array?
Select one:
👉 forEach( )
👉 every( )
👉 find( )
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Learning JavaScript takes a lot of time and patience, So take your time learning it.
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What is the output of the following code? 🖥️
console.log(0.1 + 0.2 === 0.3);
A) true
B) false
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364
How much would you rate yourself in React.js?
1(lowest) - 10(highest)
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There are so many great CSS frameworks to choose from:
⭐ TailwindCSS
⭐ Bootstrap
⭐ Foundation
⭐ Emotion
⭐ Bulma
⭐ Materialize
⭐ Semantic UI
Which one is your favorite?
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349
Which programming language do you enjoy writing the most? 😀
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What's your CSS framework of choice? 👨💻👩💻
Or do you prefer vanilla CSS? 🍦
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Top 4 Javascript Libraries for data visualization
📈Chart.js
📉D3.js
🧮ZingChart
📊amCharts
Have you used any of them?
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Websites to stay up-to-date with the latest happenings in web development!
👨💻 Dev .to
📰 Hacker News
🌐 CSS-Tricks
🔬 Mozilla Developer Network
📖 SitePoint
🐦 Twitter
📹 YouTube
📺 Level Up Tutorials
🔍 Google Developers
📚 FreeCodeCamp
💡 Codrops
👀 Reddit
📈 Stack Overflow
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If you practice programming every day, you will be a better programmer than talented coders who don't code every day.
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Make a web developer mad with one phrase
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When coding your own side projects - what do you use: JavaScript or TypeScript?
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JavaScript developers are forever students 🧑🎓
There is always something new to learn 🧠
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What are the Node.js projects you'd recommend for beginners? 🧑💻
Which did you build? 💭👇
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Top 5 CSS frameworks with the most stars on GitHub
1. Bootstrap - 161k ⭐
2. Semantic UI - 50k ⭐
3. Tailwind CSS - 63k ⭐
4. Bulma - 46k ⭐
5. Materialize - 38k ⭐
Which one of them is your favorite?
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What are you using as your default browser developers?
1. Chrome
2. Firefox
3. Brave
4. Microsoft Edge
5. Opera
Share in the comments 💭
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🚨🚨 LAUNCH ALERT 🚨🚨
Hi there! I am feeling honored and blessed to be able to share this release with you, I have poured so much passion into creating this over the past 8 months and it is finally ready to be enjoyed.
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Learn JavaScript before you learn Framework?
Yes, definitely 💯
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Raise your hand👋 if you're Self-taught Developer🔥
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Basic Programming Principles Every Programmer Must Know
📌DRY - Don't Repeat Yourself
📌KISS - Keep It Stupid Simple
📌YAGNI - You Aren't Gonna Need It
📌SLAP - Single Level of Abstraction Principle
📌SOC - Separation Of Concerns
Any other ones?
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Javascript is extremely versatile, have a look 👇
👉Front-end/website = JavaScript
👉Back-end/web server = NodeJS
👉Mobile app = React Native
👉Desktop app = Electron
👉Games = Phaser
👉ML = Tensorflow
👉VR = WebVR
Add more, if I'm missing something 💭👇
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Free Resources for Learning React Native ⚛️📱
📖React Native Documentation
🎥React Native School
📱React Native Express
📚Fullstack React Native
🌐Expo Docs
👩💻React Native at Facebook
💻FreeCodeCamp React Native Course
📚React Native Fundamentals on Egghead
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Do you have a blog or portfolio?
Share the link 💭
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Are you looking for a remote 🧑💻developer job?
Look here 👇
✅ angel .co
✅ remote. co
✅ hired. com
✅ remoteok .io
✅ flexjobs .com
✅ solidgigs .com
✅ remotive .io
✅ justremote .co
✅ remoteleads .io
✅ javascriptjob .xyz
✅ weworkremotely .com
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I'm wondering 🤔 what people mostly use Tailwind CSS, Bootstrap, or Vanilla CSS.
What do you use?
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Amazing Animation Libraries for Web Developers😉
📌CSS Shake
📌AniJS
📌Mo.js
📌Bounce.js
📌AnimeJS
📌Magic Animations
Add more 👀👇
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🔴Our brand new YouTube video is now LIVE! 🔴
Build and Deploy a Responsive Website | Beginner HTML CSS Tutorial on How to Make a Website in 2023
🔗
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No matter how smart you are, it takes time to be good at Javascript ✨
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🔴Our brand new YouTube video is now LIVE! 🔴
Next.js 13 Full Course 2023 | Build and Deploy a Full Stack App Using the Official React Framework |
@nextjs
🔗
8
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226
How long have you been learning Web Development?
107
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214
🔴New Video!!
Master modern web development by building an improved version of Spotify. With a modern homepage, fully-fledged music player, search, lyrics, song exploration features, search, popular music around you, worldwide top charts, and much more!
5
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Great websites to practice front-end skills 🔥
⭐ frontendmentor .io
⭐ acefrontend .com
⭐ 100dayscss .com
⭐ devchallenges .io
Do you know more? Share it 👇💭
6
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199
As a web developer, are you concerned about the possibility of losing your job to AI?🤔
66
11
200
How much RAM does your computer have? 🖥️
234
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198
Take your web development skills to the next level with these 10 engaging projects accompanied by comprehensive tutorials:
🧵👇
7
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Javascript Array methods you must know about before moving to ReactJS
⚛️ map()
⚛️ filter()
⚛️ reduce()
⚛️ sort()
⚛️ slice()
10
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🔴 Things you DON'T need to become a developer:
1. Mechanical keyboard
2. Multiple monitors
3. MacBook Pro
🟢 Things you DO need to become a developer:
1. Patience
2. Eager to learn
3. Continuously learning attitude
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Improve your CSS skills with these free games:
🎮 cssbattle .dev
🎮 mastery .games
🎮 quizzes .madza .dev
🎮 cssgridgarden .com
🎮 flexboxdefense .com
🎮 flukeout .github .io
🎮 flexboxfroggy .com
And more👇💬
4
40
187
What is the output of the following code snippet? 🤔
console.log(typeof typeof 1);
A) number
B) string
C) undefined
D) NaN
70
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187
🔴The New Video is Live🔴
The ultimate course, which will help you become a master of Modern Web Development by Building Real Industry Applications.
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Build and Deploy a Full Stack MERN Application With CRUD, Auth, and Charts Using
@refine_dev
🔗
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Websites to get FREE CSS code snippets
✅ codepen.io
✅ codepad.co
✅ cssdeck.com
✅ codemyui.com
✅ webcode.tools
✅ littlesnippets.net
✅ css.tricks.com/snippets
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If you want to incorporate animation into your designs, animation libraries are a great resource to have 👌
In this thread, I've listed the best free animation libraries that can support you in creating professional animations 🔥
🧵👇
10
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Main Core Concept You Need to Know About ReactJS 🧠
⚛️ Virtual DOM
⚛️ React Components
⚛️ State, props, events
⚛️ Organizing your components
⚛️ Code-splitting in React
⚛️ Class vs Function components
⚛️ React Fragments
⚛️ React Hooks
⚛️ Context API
Add more 💭👇
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NEW VIDEO - Build Your First Full Stack React Native App! 🔥🎉
➡️
We know you're excited about this one, so let's dive in!
Here's what we'll cover in the video:
1️⃣ The Ultimate React Native Crash Course:
→ Discover the advantages of
@reactnative
→ A…
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Top 5 JavaScript Testing Frameworks on GitHub
1. Cypress - 42.5k ⭐
2. Jest - 41.4k ⭐
3. Mocha - 21.9k ⭐
4. AVA - 20.2k ⭐
5. Jasmine - 15.5k ⭐
Which one do you work with?
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FREE Sites to find HTML/CSS/Javascript Code Snippets 👇
✅ codepen .io
✅ codepad. co
✅ snipplr. com
✅ codeply. com
✅ webcode .tools
✅ codemyui. com
✅ bootsnipp. com
✅ 30secondsofcode. org
✅ littlesnippets. net
✅ codesandbox. io/search
✅ css-tricks. com/snippets/
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Always remember, several hours of debugging can save you a few minutes of reading the documentation! 😅
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Build and Deploy an Amazing 3D Web Developer Portfolio in React JS | Beginner
@threejs
Tutorial |
@Hostinger
🔗
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If you're learning CSS, what are your biggest struggles?
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