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🏷️ A Practical Guide to TypeScript Custom Types for QA Automation

The article delves into using custom types in TypeScript for QA automation, focusing on creating robust, self-documenting, and error-resistant test frameworks.
Topics covered include defining union and string literal types for precise variable definitions, using type aliases to name data structures effectively, and leveraging interfaces to define object contracts.
It explains the distinctions between type aliases and interfaces, highlighting when to use each in QA automation scenarios for API payloads, response models, or Page Object Models.
The article also discusses extending interfaces for creating consistent API response models and using type assertions like 'as' and '!' for type safety and control over data shapes.
While emphasizing the benefits of custom types for bug prevention and code clarity, the article presents a challenge to apply the concepts learned by defining custom types for a product payload and response, and ensuring type safety.

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Dev

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Trust Over Throttle: Leveraging o3-Pro for Accurate, Impactful AI

o3-pro model prioritizes reliability and accuracy over raw speed, reducing hallucinations and enhancing depth of reasoning.
Clients report 40–60% better ROI by prioritizing accurate AI outputs.
Strategic model routing: utilize lighter models for simple queries and o3-pro for complex analyses.
Cost vs. value: paying a premium per token for o3-pro can save on error-handling and rework costs.
Enterprises are advised to focus on consistent, trustworthy AI outputs rather than chasing speed records.
Three pillars of model selection for enterprise AI: consistent accuracy, cost-effective inference, and domain-specific solutions.
Comparison between o3-pro and lighter models in terms of hallucination rate, depth of reasoning, latency, cost per token, and ideal use cases.
Real-world ROI: organizations see 40–60% higher ROI on AI investments, reduced support costs, and improved stakeholder confidence with reliability-first approach.
Scenario-based recommendation: choose lighter models for real-time interactions, simple chatbots, and high-volume classification tasks.
Focus on strategy, reliability, cost efficiency, and domain alignment for sustainable gains in AI implementation.

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Analyticsindiamag

389

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AI Models from Google, OpenAI, Anthropic Solve 0% of ‘Hard’ Coding Problems

A new research study reveals that AI models from Google, OpenAI, and Anthropic have not been able to solve any 'Hard' coding problems, scoring 0%.
The study by multiple universities identified shortcomings in existing coding benchmarks and introduced the LiveCodeBench Pro to evaluate models with challenging problems.
Models excelled in knowledge-heavy and logic-heavy problems but struggled with observation-heavy challenges that require novel insights.
The AI models often made errors related to algorithms, showing room for improvement even with multiple attempts.
Despite claims of surpassing elite humans, the models still lag significantly in tasks demanding unique solutions.
Another analysis by Oxford researcher Toby Ord suggests that AI agents have a declining success rate over longer tasks, posing a challenge for handling complex coding projects.
While AI agents show improvements in handling longer tasks, achieving high-reliability performance still requires significantly shorter task durations.
The timeline for AI to effectively manage intricate coding tasks remains uncertain despite advancements in AI capabilities.
A detailed technical report is available for in-depth information on the research findings.
The article delves into the struggles of AI models in tackling complex coding challenges, emphasizing the need for improvement in reasoning and problem-solving capabilities.

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Medium

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However bash I delete untracked section information from the actual running actor?

Git provides interactive deletion of untracked files to allow users to preview and exclude affected data before actually deleting.
Using the --dry-run option before the actual deletion helps in understanding the changes without executing the operation.
The git clean command with flags like -d can be used to handle bare folders alongside files.
Conditional expressions are essential in programming for decision-making within code.
Python offers a ternary conditional operator for concise conditional assignments.
The ternary conditional operator syntax in Python is value_if_true if condition else value_if_false.
Implementing conditional expressions in Python using the ternary operator simplifies code and improves readability.
Overusing or nesting multiple ternary operators can lead to code that is difficult to read and understand.
Balancing conciseness and readability is key when using the ternary operator in Python.
Python's ternary conditional operator is particularly useful for basic conditional assignments and situations where brevity is essential.
Knowing how to use Python's ternary operator correctly contributes to writing efficient and maintainable code.

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Medium

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AWS Summit Stockholm: Learning from the Leaders in AI

Companies like Booking.com have deeply integrated AI into their products and development processes.
Attendees at AWS Summit Stockholm learned from industry leaders about AI integration.
A demo of Amazon Q Developer operational investigations was presented at the summit.
Amazon Q can automatically investigate alarms and provide key observations for issue investigation.
The feature helps users understand why an alarm was triggered by highlighting key information.
Users can review services inspected, information discovered, and suggestions to fix the issue.
In some cases, runbook suggestions in Systems Manager can resolve issues automatically.
Users are advised to carefully review suggestions before execution.
As models behind detection/resolution get smarter, developers can save time investigating root causes.

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Dev

355

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CodePen #Challenge: Visualizing McDonald’s Menu with Free Pivot Grid Library 👩🏼‍💻📊🍔

A Software Engineering student and beginner developer created a blog to share their learning journey and participation in #CodePenChallenges.
CodePen Challenges provide a platform to experiment with new technologies and develop professional skills by creating animations, webpages, mini games, etc.
The student participated in a recent challenge focused on food and decided to visualize data from the McDonald's Menu - Comparative Nutrition Values dataset.
WebDataRocks, a free pivot grid library, was used as the main tool to create interactive pivot tables with customization options.
The student shared their workflow for the challenge, starting with loading the dataset and filtering selected categories in the JavaScript pivot grid.
By filtering the dataset before loading, only specific categories like Breakfast, Beef & Pork, and Chicken & Fish were displayed.
The student customized the layout of the pivot table to show sub-levels of hierarchies in separate columns, resembling Excel.
In terms of styling, the student imported the 'Quicksand' font and added burger emojis as the background for better visual appeal.
WebDataRocks offers built-in themes, and the student used the orange theme to enhance the appearance of the pivot table.
The student shared the demo of their pivot table example resulting from the challenge for others to try out and evaluate.
Feedback and questions regarding adding a JS pivot table to web applications are welcomed by the student.

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Medium

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How to Create a Spring Boot Project from Scratch

To create a Spring Boot project from scratch, visit start.spring.io.
Choose the project type (Maven or Gradle), language (Java, Kotlin, or Groovy), and Spring Boot version.
Fill in project metadata like group, artifact, etc.
Select packaging type as JAR and Java version matching your setup.
Add dependencies to your project from the right-hand section.
Generate the project which will download a .zip file containing your project.
Unzip the downloaded file and open it in your preferred IDE like IntelliJ IDEA, Eclipse, or VS Code.
Upon opening the project in your IDE, you will see a pom.xml file with project configuration.
Run the project in your IDE or use 'mvn spring-boot:run' command to start the Spring Boot app on http://localhost:8080.
By following these steps, you'll have a basic Spring Boot project ready to build REST APIs, connect to databases, and more.
Consider creating your first REST endpoint or setting up database connections using Spring Data JPA as the next steps.

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Medium

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️Serving Orders Right: Django URL Routing Explained with a Restaurant Twist

Django's URL routing acts like waiters in a restaurant, ensuring requests reach the right 'chef' in a web app.
In Django, URL patterns function as maps, guiding requests to specific views.
To set up URL routing in Django: create a urls.py file within your app, define URL patterns, and link them in the main URLs file.
By linking the main URL file with the app's URL file, Django knows where to direct incoming requests.
After setting up URL routing, start your server to see your welcome message on the specified address.
Just like in a restaurant, the URL routing ensures requests are directed to the appropriate 'chef' (View) to process and serve the content.
For any inquiries or discussions about Django's URL routing, there's an invitation to connect.
Stay tuned for more Django-related insights in the upcoming week.
That's a wrap on understanding Django's URL routing using a restaurant analogy.
Django's URL routing ensures requests reach the right 'chef' (View) with precision.
The mapping of URL patterns in Django functions akin to guiding requests to different stations in a kitchen.
Upon setting up URL routing in Django, the server displays the welcome message, indicating successful routing of requests.
URL routing mechanism in Django ensures that requests are handled by the appropriate 'chef' (View), similar to a waiter directing orders in a restaurant.
Connecting the main URLs file with the app's URL file establishes the route for incoming requests in Django.
The URL routing system in Django acts as the intermediary between incoming requests and their respective 'chef' (View) for processing.
URL routing in Django functions as the essential mechanism for directing requests to the corresponding views.
The analogy of restaurant service aptly illustrates how Django's URL routing guides incoming requests to the designated 'chef,' ensuring efficient content delivery.

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Medium

105

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SwiftUI Animations for Beginners: Learn with Simple Examples (2025 Edition)

Animations in SwiftUI are seamless and operate by re-rendering views with updated states.
SwiftUI does not call specific functions to move views, it interpolates between old and new values for animations.
Using withAnimation or .animation() may not always produce the desired animation effect in SwiftUI.
The guide aims to provide clarity on SwiftUI animations for beginners.

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Dev

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How to Build a Download‑Free HTML5 Game Portal Like SurgeBlazePlay

Building a polished, download-free game portal like SurgeBlazePlay requires offering instant-play, daily updates, and a mobile-friendly design without popups or logins.
The tutorial covers creating a similar portal from scratch, including architecture, content management, front-end implementation, and performance optimizations.
Instant-play matters for modern players who expect zero friction in accessing games, such as no downloads, logins, or popups, and mobile-first design.
The portal's high-level architecture comprises Content API & CMS, Front-End Framework, and Hosting & CDN layers for efficient functioning.
Designing the content schema involves a minimal JSON structure for each game for easy sorting by category, pagination, and addition of new games.
Fetching and rendering games can be achieved dynamically as shown in a React-based example for displaying games in a specific category.
Key takeaways include dynamic fetching of game data, using a responsive grid for layout adaptation, and focusing on mobile-first design and performance.
Adding daily updates can be automated through CI/CD integration and scheduled publishing to keep users engaged with new releases.
Key aspects like SEO best practices, analytics integration, and monetization strategies are essential for audience engagement and revenue generation.
The tutorial emphasizes putting all components together to build a high-performance HTML5 game portal akin to SurgeBlazePlay for instant play and daily updates.
Next steps involve extending social features, implementing a Progressive Web App, ensuring accessibility, and following guidelines for a standout game portal.

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Dev

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Part 1: Your Python Gateway to Blockchain – Getting Started with `web3.py`

Python with web3.py is a great choice for blockchain development, simplifying interaction with Ethereum nodes.
web3.py translates Python commands into JSON-RPC calls understood by blockchain networks, enabling querying and interactions.
Installation involves setting up a Python project, creating a virtual environment, and installing web3 and python-dotenv.
Connecting to an Ethereum node can be done through services like Infura or by running a local blockchain using Ganache.
Keep sensitive information secure with environment variables and avoid committing API keys by adding them to .gitignore.
The provided Python code initializes web3, connects to the Ethereum node, and reads blockchain data like block numbers and gas prices.
Unit conversions such as from Wei to Gwei or Ether are automatically handled by web3, simplifying data interpretation.
This article offers a clear guide for Python developers interested in blockchain integration, showcasing a practical example with web3.py.
Overall, the article details the process of connecting Python to blockchain, querying live data, and utilizing clean Python code for interaction.
The presented code allows for exploring blockchain functionalities like checking balances, retrieving block details, and handling conversions effortlessly.

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Medium

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Andrej Karpathy — The Programming Revolution That’s Making College Degrees Obsolete (And Creating…

The programming landscape is evolving rapidly, making traditional college degrees potentially obsolete for computer science students.
AI advancements are reshaping the industry, leading to a new trillion-dollar software ecosystem.
Proficiency in English could become more crucial than expertise in programming languages in this evolving industry.
Teenagers are now capable of developing complex applications within significantly shorter time frames compared to professional engineer teams.
Unique startups with unicorn potential might emerge from individuals with unconventional coding backgrounds.
Andrej Karpathy, former AI director at Tesla, has emphasized a significant shift in software development, indicating a complete rewrite of the existing landscape.

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Medium

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BigQuery time-partitioning: The hidden cost trap

When faced with slow analytical queries in PostgreSQL, a team migrated analytics workloads to BigQuery using Airbyte for the initial migration.
Although the migration to BigQuery initially showed impressive query performance improvements, the inability to define clustering or partitioning with Airbyte resulted in unoptimized data and increased costs.
To address the issue, the team rebuilt the data ingestion pipeline to stream data directly into BigQuery and recreated tables with proper partitioning and clustering.
Despite following best practices and implementing partitioning and clustering in BigQuery, the author discovered that partitioning didn't reduce the amount of data processed as expected.
The author experimented with various ways to query time partitioned tables and discovered that certain functions like CAST() led to processing the entire table rather than pruning partitions.
For TIMESTAMP data type, partition pruning worked effectively for all methods tested, including CAST().
The author highlighted the importance of continuously monitoring and analyzing costly queries in BigQuery to identify inefficiencies that may not be explicitly warned about in documentation.

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Javacodegeeks

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Java Printing Stack Values Example

Printing the contents of a stack in Java involves understanding the Last-In-First-Out (LIFO) behavior of the Stack class in the java.util package, which provides operations like push, pop, peek, empty, and search.
Java's Stack class is versatile for various use cases but is considered a legacy class; it's recommended to use Deque implementations like ArrayDeque for better performance.
Common stack use cases include parsing expressions, undo functionality, backtracking algorithms, and Depth-First Search (DFS) in graph traversal.
Different techniques for printing stack values in Java are demonstrated, including toString(), enhanced for-loop, forEach() with lambda, Iterator, ListIterator (for LIFO order), and using a Deque.
These approaches offer various ways to traverse and print stack elements, showcasing both traditional iteration and more functional styles.
Comparison is made based on maintaining LIFO order, code simplicity, mutability, and additional notes for each printing approach.
Understanding these methods helps in writing cleaner code when working with stack data structures in Java, preserving the LIFO order based on specific requirements.

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Medium

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Web Development: Build Your Online Empire in 2025

Web development involves creating, designing, and maintaining websites through Front-End, Back-End, and Full-Stack Development.
Key reasons to focus on web development include attracting more visitors with mobile-friendly sites, ranking higher on Google with SEO optimization, meeting the demands of e-commerce growth, and providing a better user experience.
Popular tools for building modern websites include HTML5, CSS3, JavaScript, React.js, Vue.js, WordPress, Node.js, Express, and GitHub for version control and collaboration.
It's essential to include SEO keywords such as web development services, front-end vs back-end, learn coding for websites, responsive web design, and website development tools in blog posts.
Keyword placement in titles, first 100 words, headings, image alt texts, and meta descriptions is crucial for SEO.
Focusing on fast loading speed, clean navigation, mobile responsiveness, and secure hosting is vital to prevent losing visitors.
Web development is a valuable skill for freelancing, tech jobs, and business growth, making it essential to invest in your website to enhance your brand.

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