Coding cheat sheets
One-page quick references for the syntax you look up over and over. Read them here, or drop your email and save any of them as a PDF to keep next to your keyboard.
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Python cheat sheet
The Python syntax you reach for every day, on one page: types, strings, lists, dicts, control flow, functions, and comprehensions.
Open the Python cheat sheet →JavaScript cheat sheet
Modern JavaScript on one page: let/const, arrow functions, the array methods you use daily, objects, and async/await.
Open the JavaScript cheat sheet →Node.js cheat sheet
Node.js essentials on one page: modules, the npm commands you actually type, files, env vars, and a tiny server.
Open the Node.js cheat sheet →Git cheat sheet
The Git commands you use every day on one page: stage, commit, branch, merge, push, pull, and how to undo without panic.
Open the Git cheat sheet →SQL cheat sheet
The SQL you write daily on one page: querying, filtering, joins, grouping, aggregates, and changing data.
Open the SQL cheat sheet →TypeScript cheat sheet
TypeScript on one page: the type annotations, interfaces, unions, generics, and utility types you use every day.
Open the TypeScript cheat sheet →HTML & CSS cheat sheet
HTML and CSS on one page: the tags you use, how selectors work, the box model, and the Flexbox and Grid layout you always look up.
Open the HTML & CSS cheat sheet →React cheat sheet
Modern React on one page: components, JSX, props, useState, useEffect, lists and keys, and event handling.
Open the React cheat sheet →Bash cheat sheet
The terminal commands you use every day on one page: navigate, manage files, search text, pipe, redirect, and set permissions.
Open the Bash cheat sheet →Docker cheat sheet
Docker on one page: images, containers, the Dockerfile, docker compose, and the cleanup commands you forget.
Open the Docker cheat sheet →Go cheat sheet
Go on one page: variables, functions, slices and maps, structs, the error pattern, and goroutines.
Open the Go cheat sheet →Java cheat sheet
Java on one page: types, strings, the collections you use, classes, control flow, and streams.
Open the Java cheat sheet →Rust cheat sheet
Rust on one page: variables, the ownership and borrowing rules, structs and enums, match, and Result and Option.
Open the Rust cheat sheet →C++ cheat sheet
C++ on one page: types, strings, vectors, references and pointers, control flow, and classes.
Open the C++ cheat sheet →Regex cheat sheet
Every regex token you keep forgetting, on one page: classes, anchors, quantifiers, groups, lookarounds, and flags.
Open the Regex cheat sheet →CSS cheat sheet
The CSS you look up constantly, on one page: selectors, the box model, Flexbox, Grid, positioning, and variables.
Open the CSS cheat sheet →PHP cheat sheet
The everyday PHP 8 syntax you keep looking up, on one page: types, strings, arrays, control flow, functions, and superglobals.
Open the PHP cheat sheet →Ruby cheat sheet
The Ruby you reach for daily, on one page: types, strings, arrays, hashes, blocks, control flow, and classes.
Open the Ruby cheat sheet →Kotlin cheat sheet
The Kotlin you look up while coding, on one page: types, null safety, collections, control flow, functions, and data classes.
Open the Kotlin cheat sheet →