Dan Levy

@danlevy.net

618 Followers 408 Following

Currently: โ€ช@magicschoolai.bsky.socialโ€ฌ Engineer, Educator, Entrepreneur ๐Ÿ‡ฟ๐Ÿ‡ฆ ๐Ÿ‡ฎ๐Ÿ‡ช ๐Ÿ‡ฌ๐Ÿ‡ง ๐Ÿ‡บ๐Ÿ‡ธ ๐Ÿก https://danlevy.net/ ๐Ÿ’ป https://github.com/justsml/ ๐Ÿ“ https://www.linkedin.com/in/realdaniellevy/ ๐Ÿ“ https://mastodon.social/@justsml

Gleefully shocked redditors discovering a long-sought cure to a jaw click. ๐Ÿ…
Distracted Boyfriend meme: Has "feature complete" - looking at "Git Rebase"
[Lonely Pablo meme, Pablo staring into the distance] MASTERED GHIDRA, cannot reverse vibes.
# 3. Warmup: Units Which of these units is NOT a valid โŒ 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/)
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.
A screen recording showing my newly published "Open Source Log" journal page from this morning. https://danlevy.net/open-source-journal/
Yawning cat with tongue out.
# 13. Units: EM Similar to the previous question, what will be the pixel size of 1.2em for the โ€œHOMEโ€ 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/)
# 11. Layouts: Units What is the pixel size of the <a> linkโ€™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/)
# 2. Identity Columns What is the SQL Standard compliant way to create an auto-incrementing primary key in PostgreSQL 10+? Weโ€™re creating a table to track students: CREATE TABLE students ( -- Which syntax should we use here? ๐Ÿค” 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/)
# 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/)
What will this script output? ```bash function greet () { echo "$1" } greet Hi Dan ```
A screenshot of my blog color theme both before and after. https://danlevy.net
What will print out the message `It's ๐Ÿ”จ Time!`? echo 'It's ๐Ÿ”จ Time!' echo 'It\'s ๐Ÿ”จ Time!' echo 'It'\''s ๐Ÿ”จ Time!' echo 'It''s ๐Ÿ”จ Time!' Error
Select one INVALID font-size unit: 10cx, 10mm, 10pt, 10px, 10vmin
Downtown Denver, Union Station - at Night
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}`, );
Answering a JS question on new assignment operators.
Mis-mashed old styles led to mis-aligned bleh.