Dan Levy
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danlevy.net
Dan Levy
@danlevy.net
610 followers 400 following 53 posts
Currently: ‪@magicschoolai.bsky.social‬

Engineer, Educator, Entrepreneur

🇿🇦 🇮🇪 🇬🇧 🇺🇸

🏡 https://danlevy.net/
💻 https://github.com/justsml/

📁 https://www.linkedin.com/in/realdaniellevy/
📁 https://mastodon.social/@justsml
Posts Replies Media Videos
danlevy.net
This site is free www.reddit.com/r/ChatGPT/co...
Gleefully shocked redditors discovering a long-sought cure to a jaw click. 🏅
April 17, 2025 at 3:32 PM
danlevy.net
Friends don't let friends rebase.

#git #rebase #engineering
Distracted Boyfriend meme: Has "feature complete" - looking at "Git Rebase"
April 11, 2025 at 11:14 PM
danlevy.net
For my #Security friends. 🫶

#ghidra #idapro #disassemblers #decompilers

#vibecoding #vibe
[Lonely Pablo meme, Pablo staring into the distance] MASTERED GHIDRA, cannot reverse vibes.
March 25, 2025 at 8:31 PM
danlevy.net
Thanks for the reminder... I'll have to add something on the newer space-delimited notation to my CSS quizzes!
# 3. Warmup: Units Which of these units is NOT a valid ❌ CSS unit? (Yes, ALL but ONE are unsupported.) ------ 1. em 2. rem 3. cm 4. mm 5. in 6. pt 7. pc 8. px 9. ex 10. ch 11. vmin 12. vmax 13. vh 14. rel 15. vw [credit](https://danlevy.net/quiz-css-core-fundamentals/) # 2. Warmup: Colors Can you spot the ONE valid 👍 hex code? ------ 1. #A 2. #AB 3. #ABCD 4. #ABCDE [credit](https://danlevy.net/quiz-css-core-fundamentals/)
February 22, 2025 at 12:24 AM
danlevy.net
This UI has to be a top contender for the MOST #uninspiring #UX #design from the past 10+ (20?) years.

I'm not naming & shaming. There's no point piling on this poor company.

- Overflow/wrapping tab bar?! 💯 a cry for help.
- BOLD overload! 🤦‍♀️
- 3-4 word tab labels? 🧐

They are clearly struggling.
A painfully blah & discordant email "settings screen" from a large service. 0. Confusing text on Labels, Inputs, and Buttons. Also, very poorly structured & ordered. No intuitive hierarchy. 1. BOLD overload. If everything's bold, nothings bold. 2. Links in form shouldn't have varied or surprising behavior. They should be consistent. 3. Death by drop down: Drop-downs (by design) hide available options until clicked. - For three or fewer options, consider a radio button or toggle switch, very helpful for folks with vision or memory impairments.
December 29, 2024 at 9:51 PM
danlevy.net
Hi friends! Check out my latest post!

It features dozens of Open Source contributions I've made over the years. From Docker to Lodash, every entry has stats, links, and more stats! 📊

#OpenSource #OSS
December 18, 2024 at 4:45 PM
danlevy.net
Yawning cat with tongue out.
December 17, 2024 at 10:03 PM
danlevy.net
Great thinking, that's what my next questions zero in on. The difference between rem/em are the next few questions in the quiz 😇
# 13. Units: EM Similar to the previous question, what will be the pixel size of 1.2em for the “HOME” link in the following HTML? <html style="font-size: 10px;"> <body style="font-size: 20px;"> <a style="font-size: 1.2em;">HOME</a> </body> </html> ------ 1. 10px 2. 12px 3. 14px 4. 20px 5. 24px 6. 34px [credit](https://danlevy.net/)
December 16, 2024 at 8:36 PM
danlevy.net
Happy Monday!

Today's Question of the Day is about Relative Units in #CSS!

How big will the "Home" text end up?
# 11. Layouts: Units What is the pixel size of the <a> link’s text in the following HTML? <body style="font-size: 40px !important;"> <nav style="font-size: 50%;"> <a style="font-size: 25%;">HOME</a> </nav> </body> ------ 1. !40px 2. 5px 3. 20px 4. 25px 5. 40px [credit](https://danlevy.net/)
December 16, 2024 at 7:57 PM
danlevy.net
Happy Friday everyone!

Today's Question of the Day is on SQL and identity columns:

(Also, apologies for the delay, I've been on calls from 6AM to 3PM. 😵)

Full quiz: danlevy.net/quiz-postgre...
# 2. Identity Columns What is the SQL Standard compliant way to create an auto-incrementing primary key in PostgreSQL 10+? We’re creating a table to track students: CREATE TABLE students ( -- Which syntax should we use here? 🤔 name VARCHAR(100) NOT NULL ); ------ 1. id SERIAL PRIMARY KEY 2. id BIGSERIAL PRIMARY KEY 3. id INTEGER AUTO_INCREMENT PRIMARY KEY 4. id int GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY [credit](https://danlevy.net/)
December 13, 2024 at 10:43 PM
danlevy.net
Good morning! I hope you're ready for...
Dan's Question of the Day ✨

The question today is about JavaScript Numbers & Arrays!
Easy, right?

What will happen when you run this code?

#js #javascript #typescript
#advanced #numbers #quiz
# 11. Number[] [24, 'Twenty1', 0o42].map(Number) ------ 1. [24, NaN, 34] 2. [24, NaN, 42] 3. [24, 1, 42] 4. [24, 42] 5. NaN 6. TypeError [credit](https://danlevy.net/)
December 12, 2024 at 2:59 PM
danlevy.net
Question of the Day: #Linux #Shell #bash

What will this script output?
What will this script output? ```bash function greet () { echo "$1" } greet Hi Dan ```
December 11, 2024 at 10:17 PM
danlevy.net
I updated my site colors, and fixed up my screenshot generator script! 💅
A screenshot of my blog color theme both before and after. https://danlevy.net
December 11, 2024 at 8:58 PM
danlevy.net
#Linux #Shell #QOTD!

Do you know the answer???
What will print out the message `It's 🔨 Time!`? echo 'It's 🔨 Time!' echo 'It\'s 🔨 Time!' echo 'It'\''s 🔨 Time!' echo 'It''s 🔨 Time!' Error
December 10, 2024 at 2:24 PM
danlevy.net
Daily #CSS Question:
Can you spot the invalid font unit?
Select one INVALID font-size unit: 10cx, 10mm, 10pt, 10px, 10vmin
November 19, 2024 at 8:25 PM
danlevy.net
Downtown Denver, Union Station - at Night
Downtown Denver, Union Station - at Night
November 16, 2024 at 12:23 AM
danlevy.net
Check out my latest quiz on Destructuring in JavaScript & TypeScript!

danlevy.net/quiz-destruc...
What will this code do? const person = { name: { first: 'Dan' }, address: { city: 'Denver' }, }; const { name: { first }, address: { city }, birth: { place }, } = person; console.log( `First: ${first}, City: ${place}`, );
November 15, 2024 at 5:53 PM
danlevy.net
1. Just redesigned the Quiz UI on my blog!
2. Also, added 8+ Quizzes on JavaScript, CSS, SQL and more!

Let me know what you think!

danlevy.net/challenges/
Answering a JS question on new assignment operators. Animated loading effect on "CSS" Quiz.
November 11, 2024 at 8:09 PM
danlevy.net
Working on an updated Quiz UI from my blog.
Mis-mashed old styles led to mis-aligned bleh. A much cleaner UI
November 8, 2024 at 4:14 AM