Developer Cheatsheets

Quick reference guide for essential Git commands, branching workflows, remote repositories, stashing, and rollbacks.

Complete guide to SQL statements including SELECT queries, WHERE filters, aggregate functions, JOIN types, and DDL commands.

Interactive guide to Regex anchors, character classes, quantifiers, lookarounds, capturing groups, and search flags.

Complete guide to JavaScript Array prototype methods, functional iteration, search techniques, transformations, and mutation styles.

Interactive handbook for terminal navigation, file administration, permissions, process handling, and basic networking utilities.

Essential commands for managing containers, container images, persistent data volumes, networks, and Docker Compose environments.

Complete guide to standard and security HTTP headers including Authorization, CORS control, caching policies, and CSP directives.

Complete guide to kubectl, managing pods, services, deployments, configmaps, secrets, troubleshooting, and cluster context.

Essential cURL commands for making GET/POST requests, sending custom headers, form data, JSON payloads, authentication, and debugging connections.

Comprehensive guide to core Spring Framework and Spring Boot annotations including Stereotypes, REST Controllers, DI, Data/JPA, and Configuration.

Complete handbook for Java collections: Lists, Sets, Maps, Queues, iteration styles, sorting techniques, thread-safe alternatives, and stream pipelines.

Reference guide for Redis strings, hashes, lists, sets, sorted sets, key expiration rules, pub/sub messaging, and server admin commands.

Essential guide to Maven, managing the build lifecycle, compiling, testing, packaging, dependency resolution, and common pom.xml definitions.

Essential handbook for Gradle builds, command-line arguments, task execution, dependency management, daemon administration, and cache refreshing.

Complete interactive reference guide for Java Stream pipelines, covering intermediate operations (filter, map, flatMap), terminal reduction patterns, complex grouping Collectors, and modern Java 11/17/21/22 enhancements.

Comprehensive guide to prompt engineering frameworks: Few-Shot, Chain-of-Thought, ReAct, Role Prompting, and formatting controls.

Syntaxes and patterns for OpenAI completions, structured outputs, chat streaming, image generation, and model parameters.

Quick reference for Anthropic's Claude API: client setup, Messages API, system instructions, token streams, and multi-modal payloads.

Complete developer's guide to the official @google/genai TypeScript SDK: model selection, streaming, multimodal inputs, system instructions, and tool calling.

Quick reference guide for UNIX Cron patterns: minute, hour, day, month, day-of-week, special strings, and automation schedules.

Quick reference for Bash commands: file operations, piping, process control, environment variables, conditions, and shell scripting loops.

Syntaxes and patterns for JSON Web Tokens: structure (Header.Payload.Signature), signing keys, validation, claims (sub, exp, iat), and storage.

Interactive reference guide for valid JSON syntax, data types, parsing/stringifying methods, schema validation rules, and language integrations.

Your complete Python cheatsheet and interactive cheat sheet. Learn basic commands, data structures (lists, dicts), OOP principles, and useful library methods.

Master modern TypeScript 5.x with this interactive cheatsheet. From core primitives and interfaces to complex generics, utility types, discriminated unions, and advanced type-level programming patterns.

Ultimate React cheatsheet and development hooks cheat sheet. Master core state management, side effects, Context API providers, and memoization hacks.

Complete CSS Grid cheatsheet and grid alignment cheat sheet. Learn grid-container attributes, alignment properties, visual template areas, and responsive units.

Essential Terraform cheatsheet and infrastructure-as-code cheat sheet. Fast command list for initializing, preparing planning graphs, state handling, and deployments.

Your cloud companion: AWS CLI cheatsheet and terminal cheat sheet. Explore S3 storage actions, EC2 status queries, security IAM setups, and serverless Lambda listings.

Complete VS Code shortcuts cheatsheet and editor keymap cheat sheet. Maximize productivity using essential editing hacks, navigation commands, and terminal toggles.

Essential configurations, authorization annotations, filter chain setups, JWT integration, and security headers.

Interactive Spring Data JPA reference guide. Learn derived query methods, advanced JPQL/native @Query structures, entity relationship mappings, entity graph performance tuning, transaction management, and Hibernate 6+ features.

Tuning JVM performance, memory sizes, Garbage Collection strategies, and diagnostic logging.

Helm CLI commands including chart creation, deployments, release upgrades, rollbacks, and template debugging.

Secure remote shell connections, SSH key generation, port forwarding, config files, and file transfer tunnels.

Advanced RAG techniques: hierarchical chunking, query translation, hybrid retrieval, Cross-Encoder reranking, metadata filtering, and RAG evaluation.

Core operations, index creation, HNSW tuning, metadata filtering, and client syntax for Pinecone, Qdrant, Milvus, and Chroma.