Developer Cheat Sheets

PYT

Pytest Failure Triage

Reproduce, classify, and fix failing Python tests with a practical command workflow

TF

Terraform

init, plan, apply, destroy, state, modules, backends, HCL syntax, and functions

T<>

TypeScript Generics

Generic functions, classes, constraints, conditional types, mapped types, utility types

PDB

Python Debugging

pdb commands, logging, profiling, memory debugging, and common error fixes

ES+

JavaScript ES2024+

Object.groupBy, Promise.withResolvers, Set methods, Iterator helpers, Temporal API

NXT

Next.js App Router

File conventions, routing, Server Components, data fetching, metadata API, and middleware

SEC

Web Security

OWASP Top 10, XSS, SQLi, CSRF, security headers, auth, CORS, and rate limiting

PD

Pandas

DataFrames, filtering, grouping, merging, I/O operations for Python data analysis

RED

Redis Commands

Strings, hashes, lists, sets, sorted sets, pub/sub, transactions, and streams

200

HTTP Status Codes

Complete reference for all HTTP response codes

GET

HTTP Methods

GET, POST, PUT, PATCH, DELETE — complete request methods reference

API

REST API

HTTP methods, status codes, headers, auth, pagination, error handling

.*

Regex Cheat Sheet

Character classes, quantifiers, lookaheads, and common patterns

git

Git Commands

Essential Git commands for everyday use

flex

CSS Flexbox

Visual guide to Flexbox properties

grid

CSS Grid

Complete CSS Grid layout reference

🐳

Docker Commands

Essential Docker commands for containers, images, and compose

DC

Docker Compose

Docker Compose CLI commands, file structure, and configuration

YML

YAML Syntax

YAML syntax, types, collections, anchors, and common gotchas

SQL

SQL Cheat Sheet

Essential SQL queries, joins, and syntax

$_

Bash Shortcuts

Terminal shortcuts, commands, and one-liners

vim

Vim Shortcuts

Essential Vim keyboard shortcuts and commands

$>

Linux Commands

Essential Linux commands: files, processes, networking, text processing

rwx

Linux Permissions

chmod, chown, octal notation, and special permissions

str

Python Strings

Python string methods with examples

[ ]

JS Array Methods

JavaScript array methods: map, filter, reduce, and more

K8s

Kubernetes Commands

kubectl pods, deployments, services, debugging, RBAC

TS

TypeScript Types

Generics, utility types, mapped types, type guards

React

React Hooks

useState, useEffect, useContext, useMemo, custom hooks

curl

cURL Commands

HTTP requests, authentication, headers, uploads, and API testing

Go

Go (Golang)

Variables, goroutines, channels, structs, interfaces, error handling

Rs

Rust

Ownership, borrowing, lifetimes, traits, Option, Result, iterators

npm

NPM Commands

Install, publish, scripts, workspaces, and 65+ essential npm commands

::

CSS Selectors

Complete CSS selectors reference: :has(), nesting, pseudo-classes, combinators

MD

Markdown

Complete Markdown syntax: headings, lists, links, code blocks, tables, GFM

PY

Python Basics

Variables, data types, functions, classes, file I/O, and essential patterns

node

Node.js & npm

npm commands, package.json, fs, http, streams, events, and common patterns

GQL

GraphQL

Queries, mutations, subscriptions, schema SDL, directives, fragments, pagination

@m

CSS Media Queries

Breakpoints, responsive design, prefers-color-scheme, container queries