30 Seconds of Knowledge· new-tab extension

// Don't let your engineering brain rot in the age of AI

AI writes the code. You forget how it works. Every new tab, read one real code snippet and stay sharp — in 30 seconds or less.

▸install - it's freechrome · firefox · edgeFirefoxEdgeChrome
25K+ devs
new tab⌘T
Random SnippetFavouritesAll Snippets
Git

Remove files from the staging area

Updated On: February 6, 2019

Removes files from the staging area.

  • •Use git restore --staged <pathspec> to remove files from the staging area.
  • •<pathspec> can be a filename or a fileglob.
git restore --staged <pathspec>
 
# Examples
git restore --staged "30seconds.txt"
# Remove the file from the staging area
 
git restore --staged .
# Remove all changes from the staging area

// your brain is a muscle

Use it or lose it

# the symptoms

  • −You autocomplete a function you couldn't write by hand.
  • −You ship code you can't explain in review.
  • −Tab → tab → tab - when did you last actually read code?

That's not productivity. That's atrophy.

# the fix

One real snippet. Every new tab.

30 Seconds of Knowledge is a browser extension that replaces your blank new tab with one real code snippet to read - a language feature, a framework pattern, an interview answer.

No course to finish, no streak to babysit. Just one small rep, every tab - the fundamentals stay in your head, not just in the autocomplete.

$ ls library/ | wc -l

1500+reps

One snippet per new tab. One rep for your brain. Pulled from 14 libraries of languages, frameworks, and interview questions - with more to come.

// pro tip: CSS snippets support Live Preview

C++ iconC++snippet
C# iconC#snippet
CSS iconCSSsnippet
Dart iconDartsnippet
Git iconGitsnippet
Go iconGosnippet
HTML iconHTMLsnippet
Interview Questions iconInterview Questionssnippet
Javascript iconJavascriptsnippet
Python iconPythonsnippet
C++ iconC++snippet
C# iconC#snippet
CSS iconCSSsnippet
Dart iconDartsnippet
Git iconGitsnippet
Go iconGosnippet
HTML iconHTMLsnippet
Interview Questions iconInterview Questionssnippet
Javascript iconJavascriptsnippet
Python iconPythonsnippet
C# iconC#snippet
CSS iconCSSsnippet
Dart iconDartsnippet
Git iconGitsnippet
Go iconGosnippet
HTML iconHTMLsnippet
Interview Questions iconInterview Questionssnippet
Javascript iconJavascriptsnippet
Python iconPythonsnippet
PHP iconPHPsnippet
C# iconC#snippet
CSS iconCSSsnippet
Dart iconDartsnippet
Git iconGitsnippet
Go iconGosnippet
HTML iconHTMLsnippet
Interview Questions iconInterview Questionssnippet
Javascript iconJavascriptsnippet
Python iconPythonsnippet
PHP iconPHPsnippet
CSS iconCSSsnippet
Dart iconDartsnippet
Git iconGitsnippet
Go iconGosnippet
HTML iconHTMLsnippet
Interview Questions iconInterview Questionssnippet
Javascript iconJavascriptsnippet
Python iconPythonsnippet
PHP iconPHPsnippet
Ramda iconRamdasnippet
CSS iconCSSsnippet
Dart iconDartsnippet
Git iconGitsnippet
Go iconGosnippet
HTML iconHTMLsnippet
Interview Questions iconInterview Questionssnippet
Javascript iconJavascriptsnippet
Python iconPythonsnippet
PHP iconPHPsnippet
Ramda iconRamdasnippet

// sharp minds, sharp tools

25K+ developers

who refuse to rust

community.log$ tail -f

$ sok stats --community

→ 25,000+ developers who refuse to rust

→ 1,000+ GitHub stars

→ #2 Product of the Day · Product Hunt

→ ★★★★★ featured on the Chrome Web Store

▋

Firefox iconEdge iconChrome icon

25,000+ users

Featured on Chrome Store

#2 Product of the Day

Product Hunt

1,000+ GitHub stars

30_seconds_of_knowledge

5.0 average
contribute.mdopen source

# support us

Keep brains sharp

If 30 Seconds of Knowledge keeps your edge from dulling, consider chipping in. It stays free and open for everyone.

▸ donate# grab the merch →
merch/creator-spring