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Hayk Simonyan
United States
เข้าร่วมเมื่อ 18 ต.ค. 2022
I help software engineers secure their first tech job and advance to senior roles by teaching exactly what employers look for.
I landed my first developer job in 2017 after countless trials, errors, and following the wrong tutorials. Now, as a senior fullstack developer earning a six-figure remote income, I create free content to help you avoid my mistakes.
From data structures and algorithms to system design, I teach what matters-without overwhelming complexity or irrelevant theory.
I landed my first developer job in 2017 after countless trials, errors, and following the wrong tutorials. Now, as a senior fullstack developer earning a six-figure remote income, I create free content to help you avoid my mistakes.
From data structures and algorithms to system design, I teach what matters-without overwhelming complexity or irrelevant theory.
The Complete JavaScript Course 2025
This complete JavaScript course is all you need to master JavaScript in just 3.5 hours!
Want to master advanced JavaScript concepts and become a confident JS developer? Let's take your skills to the next level skool.com/devmastery
Project source code's
- Online Calculator: github.com/hayk-simonyan/online-calculator
- Quiz App: github.com/hayk-simonyan/quiz-app
🔖 Timestamps
Module 1: Introduction to JavaScript
0:00:00 - Welcome & Course Outline
0:02:17 - What is JavaScript?
0:05:49 - JavaScript in Action
0:09:43 - Setting Up Your Development Environment
0:18:19 - How JavaScript is Executed?
0:24:39- JavaScript vs Java vs ECMAScript
Module 2: JavaScript Building Blocks (Part 1)
0:27:55 - Welcome & Project Setup
0:31:12 - Variables
0:38:15 - Variable Naming Best Practices
0:46:36 - Getting Input Values
0:50:09- Functions
0:57:35 - Primitive Data Types
1:03:04 - Operators & Control Flow
1:11:42 - Advanced Operators
1:24:17 - Input Validation
1:31:19 - Switch Statements
Module 3: JavaScript Building Blocks (Part 2)
1:35:20 - Welcome & Section 3 Roadmap
1:37:34 - Loops
1:47:43 - Loops Exercise
1:57:23 - Arrays
2:05:30 - Arrays Exercise
2:07:55 - Objects
2:12:50 - this keyword
2:18:30 - Destructuring, Spread and Rest Operators
2:25:17 - Exercises
2:30:41 - Primitive vs Reference Types
2:38:14 - Scope & Closures
Module 4: Document Object Model (DOM)
2:44:14 - Introduction to the DOM and the Quiz App
2:49:00 - Selecting DOM Elements
2:55:06 - Creating & Manipulating DOM Elements
3:00:51 - Handling Events
3:08:40 - Submitting the Answer and Showing Results
3:15:31 - Displaying the Final Score
3:22:15 - Collecting & Displaying Wrong Answers
Want to master advanced JavaScript concepts and become a confident JS developer? Let's take your skills to the next level skool.com/devmastery
Project source code's
- Online Calculator: github.com/hayk-simonyan/online-calculator
- Quiz App: github.com/hayk-simonyan/quiz-app
🔖 Timestamps
Module 1: Introduction to JavaScript
0:00:00 - Welcome & Course Outline
0:02:17 - What is JavaScript?
0:05:49 - JavaScript in Action
0:09:43 - Setting Up Your Development Environment
0:18:19 - How JavaScript is Executed?
0:24:39- JavaScript vs Java vs ECMAScript
Module 2: JavaScript Building Blocks (Part 1)
0:27:55 - Welcome & Project Setup
0:31:12 - Variables
0:38:15 - Variable Naming Best Practices
0:46:36 - Getting Input Values
0:50:09- Functions
0:57:35 - Primitive Data Types
1:03:04 - Operators & Control Flow
1:11:42 - Advanced Operators
1:24:17 - Input Validation
1:31:19 - Switch Statements
Module 3: JavaScript Building Blocks (Part 2)
1:35:20 - Welcome & Section 3 Roadmap
1:37:34 - Loops
1:47:43 - Loops Exercise
1:57:23 - Arrays
2:05:30 - Arrays Exercise
2:07:55 - Objects
2:12:50 - this keyword
2:18:30 - Destructuring, Spread and Rest Operators
2:25:17 - Exercises
2:30:41 - Primitive vs Reference Types
2:38:14 - Scope & Closures
Module 4: Document Object Model (DOM)
2:44:14 - Introduction to the DOM and the Quiz App
2:49:00 - Selecting DOM Elements
2:55:06 - Creating & Manipulating DOM Elements
3:00:51 - Handling Events
3:08:40 - Submitting the Answer and Showing Results
3:15:31 - Displaying the Final Score
3:22:15 - Collecting & Displaying Wrong Answers
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Hello Hayk, I'm following through the course and can't see the download link for the boilerplates thank you.
Hey! Good catch, I forgot to link the resources. The project source code's are now available in the description. And you can access the full resources in our free community under the JavaScript course: www.skool.com/web-dev-mastery
Day 1
As a mobile dev smashing my head with Cursor trying to get some JS code to work, this will be mighty useful!
This was amazing. Loved your on point detailed explanation of concepts with practical implementation. Waiting for more content from you in the upcoming future 🙌.
Thanks for the analysis! I need some advice: My OKX wallet holds some USDT, and I have the seed phrase. (alarm fetch churn bridge exercise tape speak race clerk couch crater letter). Could you explain how to move them to Binance?
háy
🔥🔥
Want to master advanced JavaScript concepts and become a confident JS developer? Let's take your skills to the next level skool.com/devmastery
Backend pls
coming soon…
great work
good one
¡Qué video tan útil! Me recordó cuando empecé a aprender sobre desarrollo frontend, ¡todo un viaje! ¿Alguien más ha probado el plan de estudio que mencionan? Yo estoy combinando mi trabajo con cursos en CodigoHeroe, y aunque es un reto, ¡es súper emocionante!
This video was super helpful. I installed Astirna New Tab and it's nice to have a clean, customizable space to start my day.
The countdown feature in Astirna New Tab is pretty handy for deadlines. It's nice to have everything in one place while I work.
I appreciate the tips in this video. The Astirna New Tab really makes my browsing more efficient, especially with the speed dial feature.
I recently started using the Astirna New Tab extension and it's really helped me stay organized. The to-do lists are a game changer for my daily tasks.
OR learn HTML, CSS and a little Javascript and just go the Rails path. Less mess, more fun.
Nice animations. What tools you use to make these videos?
Your videos are awsome, thank you!
your channel is really underrated man
i really love your css roadmap i was so confused thank you ❤
Your roadmaps and content are incredibly useful. I really appreciate your hard work ♥
osam sir
osam sir
Nicely explained!!
Grab your free roadmap and PDF to track your progress at devmastery.pro/frontend-roadmap
thank you Hayk
Now how do I turn this 7 minutes into a full 1 hour discussion for my interview? 😉
This is the best explanation I've found. Well done!
Not a good explanation of compilation process.
so can you explain to us? what his explanation is missing?
I did but it was either deleted or not sent.Anyways, he described JIT compilation as just a normal compilation to machine code but the difference is that it is compiled at runtime meaning it already starts executing code(interpreting) and once engine finds "hot spots" it compiles them and optimizes. Also he said that its compiled into machine code but after parsing everything is firstly compiled to bytecode and then execution(interpretation) and JIT compilation happens.His explanation confused me more then it helped me.I still dont fully understand everything about it but i know that its either oversimplified or just wrong.So anyone reading this feel free to correct me if i said something wrong.
Subscribed, thank you...that was the best explanation I've heard!
Do django next and compare it to react
Thanks for the video. I learned a lot of techniques to apply in real projects. One note: I don't know if the video is suitable for beginners with zero experience. For people that have seen some basics it is perfect
such a great content for HLD. Best videos on system design I've seen till date.
I was a bit hesitant to watch a short video, but really, this covers the highlights in simple terms
best explanation i have ever seen , you just blow my mind ❤❤❤
hello👋 can you create video scratch whats is the best plugin we can use fro export template from wordpress and sell it in Themeforest
loved it, you explain so good. god bless you.❤❤
In a stateful architecture, the session ID can be stored on a centralized server, such as a session store. This setup allows any server in the system to fetch the session ID from the session store to process incoming requests. As a result, it eliminates the requirement for the same server to handle subsequent requests from the same client. In that case what is the disadvantage of stateful architecture. Please correct if my understanding is wrong.
素晴らしい投稿ありがとうございます!API設計の基本とベストプラクティスがとても分かりやすく、参考になりました。シンプルさと一貫性の大切さを改めて実感しました。
how to protect the service from sql injection and other kind of attacks? should we add a rate limiter to protect agains DDos attacks as well?
2:42, how to create website template files??
I can't understand why the web servers connected directly with NoSQL DB. Does that mean that the servers do not query the service to get the long URL? In that case why is there an endpoint to get the long query?
thnakyou very much sir 🥰
Thank you very much sir
Thank you sir for making this clear and awesome vedio