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How to Define, Handle, and Specify Errors in Swift

In Swift, error handling is elegantly managed using the do-catch syntax, allowing programs to respond gracefully to errors during runtime.
Errors in Swift are defined by creating custom types that conform to the Error protocol, typically by using an enum or a struct.
Swift allows for handling specific error types distinctly by using type-casting in do-catch statements and evaluating catch blocks from top to bottom.
Starting from Swift 6.0, functions can explicitly declare which specific error types they may throw, ensuring clearer and safer error handling.

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Dev

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AltSchool Of Engineering Tinyuka’24 Month 4 Week 1

CSS responsiveness allows websites to adapt to various screen sizes, ensuring optimal user experience across devices like smartphones and desktops.
Responsive design addresses issues of text size and layout on different devices, eliminating the need for excessive scrolling or zooming.
Flexible layouts using percentages or ems resize elements proportionally as screen sizes change, enhancing user experience.
Media queries in CSS apply styles based on screen size or device type, aiding responsiveness and usability across various platforms.
Flexible images ensure that pictures and videos resize within containers, maintaining aspect ratios for a responsive design.
Container units like cqw and cqi offer a flexible way to design based on container size rather than viewport, enhancing responsiveness.
Animations in CSS improve visual appeal and interactivity, creating dynamic user experiences that encourage return visits.
Transform functions in CSS allow manipulation of element appearance by rotating, scaling, skewing, or translating, enhancing visual effects.
Understanding order of transform functions is crucial for desired effects in animations, with effects processed right to left when combining multiple transforms.
Practicing and experimenting with these concepts is key to honing skills in responsive design and enhancing user experiences on websites.

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Medium

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Book Review: But How Do It Know?

The book 'But How Do It Know?' aims to demystify how computers work by breaking down their components into simpler concepts, changing readers' perspectives on computers.
The author simplifies complex computer concepts to make them understandable for people of all backgrounds, requiring no prior technical knowledge.
Readers build a simple CPU step by step while reading the book, using logic gates as building blocks and understanding the interaction between various parts of a computer.
Although lacking exercises for practical application and a deeper dive into modern hardware evolution, the book effectively fulfills its goal of explaining computer functioning in an accessible manner.

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Medium

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What Is Machine Learning, Data Science, and Deep Learning? — A Simple Guide

Machine Learning is when a computer learns tasks without being explicitly programmed, making predictions based on data.
Data Science involves analyzing data to gain insights and make informed decisions through reports and charts.
Deep Learning, a powerful type of Machine Learning, uses neural networks to tackle complex tasks by learning deep patterns from data.
Businesses are increasingly using AI and Data Science to enhance growth and efficiency, making understanding these concepts important for everyone.

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Medium

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‘China already has AI, but will it run on American platforms?’…

Nvidia reported a strong quarter with 69% growth, but warned of threats to its business due to US-China technology disputes.
China's ban on open-source AI models like DeepSeek and Qwen could harm Nvidia's business.
Nvidia CEO expressed mixed views on US export rules, praising Trump for repealing one but criticizing new restrictions imposed later.
Despite limitations, Nvidia expects second-quarter sales of around $45 billion, showing a 50% increase from the previous year.

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Dev

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Debugging Stripe Webhook Signature Verification Errors in Production

One common issue faced during the integration of Stripe in a Node.js backend is webhook signature verification failures.
The problem in production was due to using the Test Mode webhook signing secret for Live Mode events.
The fix involved updating environment variables and Stripe initialization code to handle different modes based on the environment.
A bonus tip was to use the Stripe CLI for local testing of webhooks to ensure correct functioning.

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Dev

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Getting Started with FastAPI: A Beginner’s Guide Using Python 🐍

FastAPI is a modern, high-performance web framework for building APIs with Python.
FastAPI is fast, uses Python type hints for validation, and is asynchronous by design.
FastAPI is more scalable than Flask and more minimal and lightning fast than Django REST Framework.
FastAPI is used in production for GenAI backends, microservices, ML model deployment, and startups.
To get started with FastAPI, ensure Python is installed and create a virtual environment.
Using PyCharm for development, install FastAPI and create your first FastAPI app.
FastAPI generates interactive Swagger docs and uses Pydantic for data validation.
A mini project is demonstrated - building a Simple Calculator API with addition and subtraction endpoints.
The code creates endpoints for adding and subtracting numbers, using Pydantic for data validation.
The FastAPI automatically parses JSON input, validates data, and generates interactive docs.

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Dev

328

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Google Cloud Auth Issue

Facing a Google Cloud authentication issue while trying to copy a file to a new cloud storage bucket, resulting in a '401 Anonymous caller does not have storage.objects.create access' error.
Steps to recreate the issue include downloading a cat image using 'wget', followed by attempting to copy the image to a cloud storage bucket using 'gsutil cp' command.
To resolve the issue, users can use 'gcloud auth login' command, follow the prompt to grant permission, receive a key, paste it in Google Cloud Console, and try running the command 'gsutil cp' again.

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Dev

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How to Upgrade to Angular 20

Angular 20 introduces stable Signals API and zoneless change detection.
Upgrading to Angular 20 requires Node.js v20 and TypeScript 5.8, along with careful planning.
The upgrade process involves steps such as updating Angular CLI, upgrading project dependencies, resolving breaking changes, enabling experimental features, updating Browserslist configuration, testing, and optimizing.
Post-upgrade checklist includes updating Angular Material, ensuring library compatibility, and enabling stricter TypeScript checks.

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Medium

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Codex: The AI That Turns Your Ideas Into Code (Now Smarter Than Ever)

In 2025, Codex has evolved to become a full-blown AI software engineer living in a secure, isolated cloud environment.
OpenAI has turned Codex into an interactive AI agent that assists with code and owns entire tasks, acting like a junior developer who is always available.
Codex serves as a bridge for those who want to build applications but lack coding knowledge, continuously learning and improving.
This advancement in Codex technology is a significant step towards making coding more accessible and efficient, turning the idea of building apps without coding skills into a reality.

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Dev

417

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Monoliths vs. Microservices: The Brutally Honest Guide to Splitting Your App (Without Regrets) ⚖️💥

Monoliths have the advantage of simplicity with one codebase, one deploy, and one database, but face challenges with deployment paralysis, scaling nightmares, and team collisions.
Microservices offer the ability to scale specific parts, provide team autonomy, and allow tech diversity, but come with challenges like distributed chaos, operational overhead, and data silos.
The decision to split your app depends on team pain, scaling needs, and operational costs. Signs it's time to split include frequent deployment failures, resource-hungry modules, and constant team conflicts.
Consider a modular monolith approach if you can't commit to microservices, where you package by module, maintain a shared kernel, and deploy together but build separately.

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Dev

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Sometimes You Just Need to Write Code Without the Noise

Write Code Online is a bare-bones tool created for distraction-free coding without syntax highlighting, auto-completion, or IntelliSense.
It aims to help in brainstorming algorithms, taking quick notes during code reviews, sharing code snippets, teaching programming concepts, and planning logic flow.
The tool saves work to localStorage, supports tab indentation, has keyboard shortcuts for various functions, and offers a toggle between light and dark themes.
Write Code Online promotes the value of simplicity in coding, providing a blank canvas for coding without interruptions from auto-formatting or suggestions.

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Javacodegeeks

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[DEALS] The All-in-One CompTIA Certification Prep Courses Bundle (90% off) & Other Deals Up To 98% Off – Offers End Soon!

Fresh offers are available on the Deals store, including a 90% discount on The All-in-One CompTIA Certification Prep Courses Bundle.
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There are significant discounts on Microsoft Visual Studio Professional 2022, Premium Learn to Code Certification Bundle, EaseUS Data Recovery Wizard, and various other courses.
Readers can subscribe to the newsletter for free eBooks and stay informed about developing their skillset, including becoming a Java Rockstar.

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Medium

293

Automate & Monetize: Built a Lean Tech Workflow with n8n, Notion, and Redis

The individual was facing challenges with manual tasks like juggling Google Sheets, sending WhatsApp messages, and updating CRMs late at night.
To overcome these challenges, the person leaned into automation-as-a-service and implemented a tech workflow using n8n, Notion, and Redis.
The automated freelance onboarding flow included steps like client form submission, data validation, sending welcome emails, CRM updates, and WhatsApp notifications, which significantly reduced manual efforts.
As a result of implementing automation tools, the individual achieved significant efficiency gains, handling 200+ tasks per day with high uptime and earning $3,400 USD within 90 days from the system.

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Dev

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Optimistic UI with Remix: The Game-Changer You Need to Implement Now

Optimistic UI, also known as 'Pending UI,' can be easily implemented in any framework or language, with Remix making it particularly simple.
Remix's approach to Optimistic UI enhances the responsiveness and speed of web applications by updating the UI immediately after a user action, assuming success.
Unlike other frameworks, Remix leverages native browser features, streamlining the implementation of optimistic updates with useNavigation and useFetcher.
Optimistic UI includes skeleton fallbacks, busy indicators, and optimistic updates, each serving different purposes for enhancing user experience.
Implementing Optimistic UI in a Remix application with Mock Service Worker (MSW) allows for robust API mocking and interception of API requests.
MSW is not just a testing tool but a valuable asset for developer experience, enabling developers to mock complex API scenarios and build robust UIs.
Integrating MSW into Remix's client entry enhances the development process by simulating API behavior directly in the browser.
API helper functions in Remix simplify data handling, allowing for easy fetching of data and managing actions like creating new items.
The core of implementing Optimistic UI in Remix involves loading data, handling server-side logic with loader and action functions, and updating UI optimistically.
Remix's smart handling of data, along with MSW's mocking capabilities, provides a seamless experience in orchestrating optimistic updates for web applications.

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