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David Joseph Katz Courses
React JS Web Development - The Essentials Bootcamp
4.5 (6,513 Reviews)
Provider: Udemy
Time: 28.7h- 2025
$11.99
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Docker - Containers, Images, Compose, Kubernetes, and more!
4.6 (6,222 Reviews)
- Provider: Udemy
- Time: 23.3h
- 2025
$74.99
Visit
Essentials in JavaScript ES6 - A Fun and Clear Introduction
4.0 (4,914 Reviews)
- Provider: Udemy
- Time: 1.9h
- 2018
$12.99
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The Full JavaScript & ES6 Tutorial - (including ES7 & React)
4.6 (3,948 Reviews)
- Provider: Udemy
- Time: 5.2h
- 2025
$13.99
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Build a Blockchain and a Cryptocurrency from Scratch
4.7 (3,613 Reviews)
- Provider: Udemy
- Time: 14h
- 2025
$69.99
Visit
Build a Blockchain & Cryptocurrency | Full-Stack Edition
4.5 (2,966 Reviews)
- Provider: Udemy
- Time: 21.8h
- 2025
$10.99
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React - Mastering Test Driven Development
4.4 (1,816 Reviews)
- Provider: Udemy
- Time: 4.7h
- 2018
$11.99
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Node, SQL, & PostgreSQL - Mastering Backend Web Development
4.0 (1,386 Reviews)
- Provider: Udemy
- Time: 5.2h
- 2022
$12.99
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Python, JS, & React | Build a Blockchain & Cryptocurrency
4.6 (1,082 Reviews)
- Provider: Udemy
- Time: 15.6h
- 2025
$109.99
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React Hooks Tutorial - Master React Hooks Development
4.4 (865 Reviews)
- Provider: Udemy
- Time: 18.6h
- 2025
$11.99
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Learn JavaScript, Get Hired | The Essentials
4.2 (706 Reviews)
- Provider: Udemy
- Time: 2.9h
- 2019
Free
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Master Full-Stack Web Development | Node, SQL, React, & More
4.2 (510 Reviews)
- Provider: Udemy
- Time: 18.9h
- 2018
$64.99
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React JS and Redux Bootcamp - Master React Web Development
4.4 (451 Reviews)
- Provider: Udemy
- Time: 22.6h
- 2025
$54.99
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Ethereum Tutorial: Ethereum & Smart Contracts from Scratch
4.6 (215 Reviews)
- Provider: Udemy
- Time: 10.4h
- 2022
$69.99
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Learn JavaScript, Get Hired | The Full Bootcamp
4.6 (70 Reviews)
- Provider: Udemy
- Time: 7.4h
- 2019
$69.99
Visit
Most Recent Review
Honestly i am LOVING this course! But I have to say to instructor: "Buddy, its 2025. Python and its related libraries have updated dramatically. Even with your Requirements.txt file having the versions I need, the Python VENV has other libraries which conflicts and I cant run Flask. I had to keep downgrading every library one by one and STILL Flask didnt work. Other way dont work. If I use latest Python libraries, your code errors out because some of your coding is designed for old Python and I dont know what to change. A re-do would be great. no extra video, just tweak your codes to incorporate the new Python and share github link for us"
- Review by Shah Ahmed on Python, JS, & React | Build a Blockchain & Cryptocurrency
Instructor Bio
David is a software engineer at Upstart (formerly Zendesk), with a Bachelor of Computer Science from the University of San Francisco.
David has gained valuable experience from the tech industry. By incorporating the best practices he has learned at work, he hopes to create the highest quality learning experiences possible.
Feel free to connect with David! He is always curious about the cool project you're working on. And he loves to discuss ideas on how to build impactful technology.
