
Design Patterns: what they are and how to apply them in software
Design Patterns are reusable solutions to recurring software design problems. See categories, practical examples, and when to apply each one.
~/codecrush — a tech diary
Daily articles on programming, artificial intelligence and tech careers — straight to the point, in English.
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Design Patterns are reusable solutions to recurring software design problems. See categories, practical examples, and when to apply each one.
~/codecrush/ferramentas
17 utilities that run 100% on your machine: format JSON, decode JWTs, find out which AI to use, generate test CPFs and calculate your net salary — no sign-up, no uploads.
Opportunities for people who code, analyze data or lead products.
Platform Engineering creates self-service internal platforms that abstract infrastructure. See benefits, differences from DevOps and how to adopt it.
A collection of 25 quotes on technology and programming, from Steve Jobs to Grace Hopper, with author, context and the meaning of each quote.
Flexbox Froggy, Flexbox Zombies, Grid Garden, Flexbox Defense and Grid Critters teach CSS Flexbox and Grid with interactive browser games.
Python, JavaScript, Java, C++, C, C# and Go lead TIOBE, Stack Overflow and GitHub rankings in 2026. See where each one shines and which to learn.
HackerEarth, Edabit, CodinGame, Codewars, LeetCode, HackerRank and CodeChef offer free challenges to practice JavaScript online.
Modern web development combines architectures like microservices and serverless with agile practices and DevOps to create scalable, secure applications.
A GPU is a processor with thousands of parallel cores that accelerates neural network training, scientific simulations and graphics rendering.
In real estate development, the new business area uses geointelligence, Big Data and BIM to assess land viability before purchase.
Boundary value analysis is the black-box technique that tests the extremes of input partitions, where most software defects concentrate.
Windows leads in compatibility and games, macOS in integration and stability, Linux in free customization and ChromeOS in cloud simplicity.
Cowsay is a command-line tool that displays messages in the speech bubble of an ASCII cow. Install via apt or npm and customize with the -f flag.
The Graph API is Meta official HTTP interface for reading and publishing Facebook data. See how to register the app, authenticate users and make calls.
The Google Maps API lets you embed interactive maps, routes, and geolocation in websites and apps; it requires an API key and offers 10,000 free calls per month.
AI is already applied in medicine, digital security, industry, routing, customer service, and marketing. See real examples, the risks, and how to start studying.
Data science uses statistics and machine learning to drive decisions: see 65 application areas, from finance and health to smart cities.