Developer cheat sheets
One page per language or tool, grouped by task, with copy buttons. Python, JavaScript and SQL entries run in the browser with one click.
Languages
- Python42 entries
Python 3 cheat sheet with runnable examples.
- JavaScript31 entries
Interactive JavaScript cheat sheet.
- TypeScript22 entries
TypeScript cheat sheet.
- SQL27 entries
SQL cheat sheet with runnable queries.
- Bash scripting25 entries
Bash scripting cheat sheet.
Method references
- Python string methods25 entries
All the Python string methods you use.
- Python dictionary methods18 entries
Every Python dict method with runnable examples.
- JavaScript array methods21 entries
JavaScript array methods explained with runnable examples.
Tools & shell
- Git26 entries
Git cheat sheet.
- Docker20 entries
Docker cheat sheet.
- Docker Compose14 entries
Docker Compose cheat sheet.
- Linux commands27 entries
Linux commands cheat sheet.
- Vim28 entries
Vim cheat sheet.
Syntax & layout
- Regex27 entries
Regex cheat sheet.
- Markdown21 entries
Markdown cheat sheet.
- CSS Flexbox18 entries
CSS Flexbox cheat sheet.
- CSS Grid17 entries
CSS Grid cheat sheet.