Go Database Patterns with sqlx and pgx
Master Go database patterns using sqlx and pgx for PostgreSQL including connection pooling, transactions, batch operations, and repository design.
·9 min read · #go#database#postgresql
Blog
1745 posts · page 10 of 37
Go Generics: Practical Patterns and Constraints
Learn practical Go generics patterns including type constraints, generic data structures, utility functions, and when to use generics vs interfaces.
·8 min read · #go#generics#type-parameters
Building gRPC Services in Go: Complete Guide
Build production-ready gRPC services in Go with protobuf definitions, server and client implementation, streaming, interceptors, and error handling.
·9 min read · #go#grpc#protobuf
Go Profiling with pprof: CPU, Memory, and Goroutines
Learn how to profile Go applications using pprof to find CPU bottlenecks, memory leaks, and goroutine issues with practical examples.
·8 min read · #go#profiling#pprof
JavaScript Design Patterns Every Developer Should Know
Learn the most useful JavaScript design patterns with practical examples including Singleton, Observer, Factory, Strategy, and more for cleaner code.
·9 min read · #javascript#design-patterns#architecture
How to Find and Fix JavaScript Memory Leaks
Learn how to detect, diagnose, and fix JavaScript memory leaks using Chrome DevTools heap snapshots, allocation timelines, and common leak patterns.
·8 min read · #javascript#memory-leaks#performance
JavaScript Proxy and Reflect: Metaprogramming Guide
Master JavaScript Proxy and Reflect API for metaprogramming with practical examples including validation, observable objects, and access control patterns.
·7 min read · #javascript#proxy#reflect
JavaScript Streams API: Process Data Incrementally
Master the JavaScript Streams API to process large files, network responses, and data pipelines incrementally without loading everything into memory.
·7 min read · #javascript#streams#performance
JavaScript Web Workers: Run Code Off the Main Thread
Learn how to use JavaScript Web Workers to run CPU-intensive code off the main thread, keeping your UI responsive with practical examples and patterns.
·7 min read · #javascript#web-workers#performance
Node.js vs Deno vs Bun: JavaScript Runtimes Compared
Compare Node.js, Deno, and Bun on performance, security, compatibility, and developer experience. Choose the right JavaScript runtime for 2026.
·8 min read · #nodejs#deno#bun
Prompt Chaining: Build Multi-Step LLM Workflows
Learn how to chain multiple LLM prompts together to solve complex tasks. Covers sequential chains, branching, validation loops, and production patterns in Python.
·9 min read · #prompt chaining#llm workflows#prompt engineering
Prompt Engineering for Code Generation
Master prompt engineering techniques for generating, debugging, and refactoring code with LLMs. Includes practical patterns, templates, and Python examples for developers.
·10 min read · #prompt engineering#code generation#llm
Prompt Injection: What It Is and How to Prevent It
Understand prompt injection attacks against LLM applications. Learn detection strategies, input sanitization, defense-in-depth patterns, and how to build resilient AI systems.
·9 min read · #prompt injection#security#llm safety
Get Structured JSON Output from LLMs
Learn how to prompt LLMs to return structured JSON output reliably. Covers schema enforcement, Pydantic validation, and production patterns for consistent structured responses.
·8 min read · #structured output#json#prompt engineering
REST API Authentication: API Keys, JWT, and OAuth 2.0
Learn the three most common REST API authentication methods. Compare API keys, JWT tokens, and OAuth 2.0 with working code examples and security best practices.
·8 min read · #rest#api#authentication
REST API Caching: ETags, Cache-Control, and CDN Patterns
Master HTTP caching for REST APIs. Learn ETags, Cache-Control headers, conditional requests, and CDN integration patterns with practical examples.
·8 min read · #rest#api#caching
REST API Testing: Postman, curl, and Automated Tests
Learn to test REST APIs manually with Postman and curl, then automate with Jest and Supertest. Covers status codes, response validation, and CI integration.
·7 min read · #rest#api#testing
REST vs GraphQL vs gRPC: API Styles Compared
Compare REST, GraphQL, and gRPC for API design. Understand tradeoffs in performance, flexibility, and developer experience to pick the right API style.
·8 min read · #rest#graphql#grpc
React Custom Hooks: Patterns for Reusable Logic
Master React custom hooks with practical patterns for data fetching, form handling, debouncing, and more. Learn when and how to extract reusable logic.
·8 min read · #react#custom-hooks#hooks
React Form Handling: Controlled, Uncontrolled, and Libraries
Master React forms with controlled and uncontrolled inputs, validation patterns, and React Hook Form. Build accessible, performant forms step by step.
·7 min read · #react#forms#react-hook-form
React Performance: Memo, useMemo, and useCallback Guide
Optimize React performance with React.memo, useMemo, and useCallback. Learn when to use each, how to profile, and avoid common pitfalls.
·8 min read · #react#performance#useMemo
React Portals and Modal Patterns
Build accessible modals, tooltips, and dropdowns with React Portals. Learn focus trapping, keyboard handling, and reusable modal patterns.
·7 min read · #react#portals#modals
React State Management: Context vs Redux vs Zustand
Compare React state management solutions: Context API, Redux Toolkit, and Zustand. Learn when to use each with practical examples and trade-offs.
·8 min read · #react#state-management#context-api
React Suspense and useTransition: Async UI Patterns
Learn how to use React Suspense and useTransition to build smooth async UIs. Master concurrent rendering, loading states, and transition patterns.
·8 min read · #react#suspense#useTransition
React Testing Library: Complete Testing Guide
Learn to test React components with React Testing Library. Covers rendering, user events, async testing, mocking, and accessibility-driven queries.
·7 min read · #react#testing#react-testing-library
Python CLI Tools: argparse vs Click vs Typer
Compare Python's top CLI frameworks. Build command-line tools with argparse, Click, and Typer, with examples for arguments, options, subcommands, and validation.
·8 min read · #python#cli#argparse
Python Descriptors: The Protocol Behind Properties
Learn how Python descriptors work under the hood, powering properties, class methods, and custom attribute access with __get__, __set__, and __delete__.
·9 min read · #python#descriptors#oop
Python functools: partial, lru_cache, reduce, and More
Master Python's functools module with practical examples of partial, lru_cache, reduce, singledispatch, cached_property, and wraps.
·8 min read · #python#functools#functional-programming
Python Dynamic Imports with importlib
Master Python's importlib module for dynamic imports, plugin systems, lazy loading, and runtime module discovery with practical examples.
·7 min read · #python#importlib#dynamic-imports
Python Mocking with unittest.mock: Complete Guide
Master Python's unittest.mock library for testing. Learn Mock, MagicMock, patch, side_effect, and spec with real-world examples for unit testing.
·8 min read · #python#testing#mocking
Python Profiling: Find and Fix Performance Bottlenecks
Learn how to profile Python code with cProfile, line_profiler, memory_profiler, and timeit to identify slow functions, memory leaks, and optimize runtime performance.
·9 min read · #python#profiling#performance
Python Protocol Classes: Structural Subtyping Guide
Learn how to use Python Protocol classes for structural subtyping, duck typing with static checks, and writing flexible interfaces without inheritance.
·8 min read · #python#protocol#typing
Python Socket Programming: Build a TCP Server and Client
Learn Python socket programming from scratch. Build TCP and UDP servers and clients, handle multiple connections, and implement a simple chat application.
·9 min read · #python#sockets#networking
Python subprocess: Run Shell Commands Safely
Learn how to run shell commands from Python using the subprocess module with subprocess.run, Popen, pipes, error handling, and security best practices.
·8 min read · #python#subprocess#shell
Python Weak References and Garbage Collection
Understand Python's garbage collection, reference counting, and how weak references prevent memory leaks in caches, observers, and circular structures.
·8 min read · #python#weakref#garbage-collection
MongoDB vs PostgreSQL: When to Use Each Database
Compare MongoDB and PostgreSQL across data modeling, performance, scalability, and use cases. Choose the right database for your project.
·8 min read · #mongodb#postgresql#database
PostgreSQL vs MySQL vs SQLite: Choosing the Right Database
Compare PostgreSQL, MySQL, and SQLite on features, performance, scalability, and use cases. Find the best relational database for your project in 2026.
·8 min read · #postgresql#mysql#sqlite
Jest vs Vitest: JavaScript Test Runners Compared
Compare Jest and Vitest for JavaScript testing. Understand speed, configuration, compatibility, and migration tradeoffs to pick the right test runner.
·8 min read · #jest#vitest#testing
Next.js vs Astro vs Remix: Choosing a Meta-Framework
Compare Next.js, Astro, and Remix on rendering, performance, and developer experience. Find the best meta-framework for your 2026 web project.
·8 min read · #nextjs#astro#remix
React vs Vue vs Svelte: Which Framework to Choose in 2026
Compare React, Vue, and Svelte across performance, developer experience, ecosystem, and hiring. Find the right frontend framework for your next project.
·8 min read · #react#vue#svelte
SPA vs SSR vs SSG: Rendering Strategies Explained
Understand Single Page Apps, Server-Side Rendering, and Static Site Generation — how each works, performance tradeoffs, SEO impact, and when to use which.
·6 min read · #web#ssr#ssg
tsconfig.json Deep Dive: Every Option Explained
A comprehensive guide to tsconfig.json covering compiler options, module resolution, path aliases, project references, and recommended configurations.
·8 min read · #typescript#tsconfig#configuration
TypeScript Generics: Advanced Patterns and Constraints
Master advanced TypeScript generics patterns including conditional constraints, recursive types, generic factories, and type-safe builder patterns with examples.
·8 min read · #typescript#generics#advanced
TypeScript Type Guards and Narrowing Explained
Learn how TypeScript type guards and control flow narrowing work, including typeof, instanceof, in, discriminated unions, and custom type predicates.
·8 min read · #typescript#type-guards#narrowing
TypeScript Utility Types: The Complete Guide
A comprehensive guide to all built-in TypeScript utility types including Partial, Required, Pick, Omit, Record, Extract, Exclude, and more with practical examples.
·8 min read · #typescript#utility-types#type-system
Function Calling Patterns Across LLM Providers
Compare function calling implementations across OpenAI, Anthropic, and Google, with patterns for routing, chaining, and error handling.
·7 min read · #ai#function-calling#llm
AI Inference Optimization Techniques
Reduce latency and cost of AI model inference with batching, quantization, caching, and request routing strategies.
·6 min read · #ai#inference#optimization
Multi-Agent Orchestration Architectures
Design multi-agent systems with supervisor, sequential, and graph-based orchestration patterns for complex LLM workflows.
·8 min read · #ai#multi-agent#orchestration