📋 Cheat Sheets

HTML

Tags, attributes, semantic HTML

CSS

Selectors, flexbox, grid, animations

JavaScript

ES6+, array methods, async/await

React

Hooks, lifecycle, state management

Vue

Composition API, directives, lifecycle

TypeScript

Types, interfaces, generics

Node.js

Built-in modules, event loop, streams

Express

Routing, middleware, error handling

Python

Data structures, comprehensions, decorators

Django

Models, views, templates, ORM

SQL

Queries, joins, indexes, transactions

MongoDB

CRUD operations, aggregation, indexing

Git

Commands, branching, merging, rebasing

Docker

Images, containers, volumes, compose

Linux

Commands, permissions, shell scripting

Bash

Shell commands, scripting, pipes

Vim

Modes, commands, navigation, editing

Regex

Patterns, flags, groups, lookaheads

Data Structures

Arrays, trees, graphs, heaps

Algorithms

Sorting, searching, dynamic programming

Big O Notation

Time/space complexity analysis

System Design

Patterns, scalability, databases