All Articles

A practical follow-up to the Python REST API tutorial: make API contracts predictable and protect the service at its trust boundaries.

Set up a browser test, drive it like a user, and reduce flakiness by waiting for observable outcomes.

Configure an isolated test app, send HTTP-like requests, and check the API contract at the boundary.

Compare stubs, mocks, fakes, and spies, then apply the smallest useful substitute in a test.

Build a compact test matrix for a two-sum implementation and learn when example tests are more useful than property tests.

Write discoverable pytest functions, organize reusable state with fixtures, and make failures easy to understand.

Use GitHub Actions to make test results repeatable and visible before changes are merged.

Separate the network boundary from application logic and test each asynchronous outcome deterministically.

Render a component, interact through roles and labels, and assert what a person using the interface can see.

A practical guide to the testing pyramid, with examples of what belongs in unit, integration, and end-to-end tests.

A practical companion to the Big O guide: count the work, account for memory, read constraints, and decide when an optimization is worth its complexity.

Static types do not validate JSON at runtime. Learn a practical boundary pattern that narrows untrusted responses and makes failure states explicit.

Set up Vitest and use Arrange–Act–Assert to test pure functions without depending on a browser or network.

This guide provides a practical, step-by-step approach to understanding and implementing fundamental data structures and algorithms using Python, emphasizing clarity and efficiency.

This article provides a comprehensive guide to data fetching in Next.js, covering server-side rendering (SSR), static site generation (SSG), and client-side rendering (CSR) approaches, with recommendations for choosing the right method for your specific needs.

This article provides a comprehensive guide on using React Hooks in Next.js, covering best practices, common pitfalls, and advanced techniques for building efficient and maintainable applications.

This article delves into JavaScript functions, exploring function declarations, expressions, arrow functions, and higher-order functions. It concludes with a practical example demonstrating how to fetch data from an API using the Fetch API and handle the response asynchronously.

Learn how to incrementally and safely migrate your JavaScript project to TypeScript, enhancing code maintainability and scalability.

Learn the basics of React components and how they integrate into Next.js for building performant web applications.

This article provides a quick reference guide to TypeScript types, enabling developers to write more robust and maintainable code. It covers everything from basic primitives to advanced features like mapped types and conditional types.

Explore various CMS solutions for Next.js, understand their pros and cons, and learn how to integrate Contentful with a Next.js project for efficient content management and delivery.

Building RESTful APIs with Python, covering everything from setup and data modeling to authentication and testing using Python, Flask, and SQLAlchemy.

Python list manipulations, covering slicing, list comprehensions, common methods, and efficient techniques to handle array-based data structures."

Learn how to leverage Tailwind CSS effectively for building scalable and maintainable web applications by following industry best practices and proven techniques.

This article explores practical applications of Python for automating common daily tasks, providing code examples and explanations to get you started.

This article provides a thorough analysis of leading Python web frameworks, enabling developers to choose the right tool for their specific project needs. We explore architecture, performance, scalability, and ease of use.

This article guides you through creating a realtime chat application using ExpressJS to handle server-side logic and Socket.IO for managing bidirectional communication between clients and the server. We will cover setting up the project, handling user connections, broadcasting messages, and implementing basic chat functionality.

This article provides a comprehensive overview of various Web APIs, including Fetch, WebSockets, Geolocation, and more, demonstrating how they can significantly enhance the functionality and user experience of web applications.

Event delegation is a powerful JavaScript technique that allows you to handle events efficiently by attaching a single event listener to a parent element, rather than attaching multiple listeners to individual child elements.

This article provides a detailed overview of JavaScript DOM manipulation, covering element selection, attribute modification, node creation and appending, and event handling techniques.

This article explores practical JavaScript performance optimization strategies, focusing on efficient code writing, memory management, browser rendering, and modern tools for performance profiling.

This article provides a comprehensive explanation of the JavaScript event loop, detailing how it enables non-blocking behavior and manages asynchronous tasks in a single-threaded environment. We’ll cover the call stack, heap, callback queue, and microtask queue, along with practical examples.

A notes about anything you need to know to start coding with python

How to sove Two Sum problem from Leetcode and its explaination

Data Structures and Algorithms (DSA) form the foundation of computer science and software development.

Sorting algorithms play a crucial role in data processing and organization, Understanding types of sorting algorithms is essential.

Understanding the Bio O notaion in Data Structures and Algorithms (DSA)