FunTester
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FunTester

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Latest from FunTester

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FunTester
FunTester
Dec 24, 2025 · Frontend Development

Avoid Stale State and Race Conditions in React useEffect – Interview‑Ready Tips

This article dissects a common React interview snippet that uses useEffect for data fetching, exposing hidden pitfalls such as component unmount updates, request race conditions, and missing error handling, and then presents a robust solution with cleanup logic and proper error management.

Frontend InterviewReActasynchronous
0 likes · 8 min read
Avoid Stale State and Race Conditions in React useEffect – Interview‑Ready Tips
FunTester
FunTester
Dec 23, 2025 · Backend Development

Mastering Delayed, Priority, and Retry Tasks with River – A Go Queue Deep Dive

This article explains how River, a Go job‑queue library, implements delayed execution, priority handling, exponential‑backoff retries, batch inserts, monitoring, and best‑practice patterns, and compares it with other queue solutions to help developers build reliable, high‑performance background processing pipelines.

Delayed TasksMonitoringRetry Mechanism
0 likes · 14 min read
Mastering Delayed, Priority, and Retry Tasks with River – A Go Queue Deep Dive
FunTester
FunTester
Dec 21, 2025 · Backend Development

Why River Is the Go‑Friendly Queue That Guarantees Transactional Consistency

This article explains how the River library leverages PostgreSQL to provide a Go‑native job queue with true transactional guarantees, high concurrency via goroutines, and efficient scheduling using SKIP LOCKED, while offering step‑by‑step setup and code examples for rapid adoption.

@TransactionalConcurrencyMessage Queue
0 likes · 15 min read
Why River Is the Go‑Friendly Queue That Guarantees Transactional Consistency
FunTester
FunTester
Dec 19, 2025 · Frontend Development

How to Detect and Fix Memory Leaks in React Applications

This guide explains why memory leaks occur in React, how to spot early warning signs, and provides step‑by‑step techniques—including Chrome DevTools, React DevTools, and proper cleanup of timers, event listeners, fetch requests, and refs—to prevent and resolve leaks for more stable applications.

PerformanceReActcleanup
0 likes · 13 min read
How to Detect and Fix Memory Leaks in React Applications
FunTester
FunTester
Dec 17, 2025 · Backend Development

How Contract Testing with Pact Prevents API Breakages in Microservices

This article explains why traditional unit and integration tests miss cross‑team API mismatches in microservices, introduces contract testing with the Pact framework, shows consumer and provider test implementations, describes using a Pact Broker, and offers production‑grade strategies and best‑practice recommendations.

API compatibilityCI/CDJava
0 likes · 10 min read
How Contract Testing with Pact Prevents API Breakages in Microservices
FunTester
FunTester
Dec 11, 2025 · Fundamentals

When and Where to Test: Choosing the Right Test Types for Your Application

This article outlines a comprehensive testing matrix that maps common test types—unit, API, UI, security, performance, smoke, and regression—to their problem domains, SDLC stages, and execution methods, helping teams select and prioritize tests based on risk, feedback speed, and ownership.

Software TestingUI testingUnit Testing
0 likes · 11 min read
When and Where to Test: Choosing the Right Test Types for Your Application
FunTester
FunTester
Dec 9, 2025 · Frontend Development

Mastering Ant Design Popups: Fix Overlay Issues with getPopupContainer

This guide explains why Ant Design dropdowns, tooltips, and popovers are often hidden or misaligned, how the default rendering to document.body causes these problems, and demonstrates practical use of the getPopupContainer property to control popup mounting and eliminate visual bugs in React applications.

Ant DesignFrontendJavaScript
0 likes · 7 min read
Mastering Ant Design Popups: Fix Overlay Issues with getPopupContainer
FunTester
FunTester
Dec 5, 2025 · Frontend Development

Mastering React Containers: From JSX to Real DOM and Beyond

This article explains how React’s container concepts connect JSX, the virtual DOM, and the real DOM, covering component types, root and container components, fragments, state and data flow, reuse patterns like hooks and HOCs, and stability tools such as Suspense, Error Boundaries, and StrictMode.

JSXReActVirtual DOM
0 likes · 9 min read
Mastering React Containers: From JSX to Real DOM and Beyond
FunTester
FunTester
Nov 21, 2025 · Fundamentals

How to Make AI‑Generated Code Testable, Traceable, and Feasible

This article explains why software requirements must be testable, traceable, and feasible—especially for AI‑generated code—by detailing the three key qualities, practical guidelines for achieving them, and the consequences of neglecting testability, observability, controllability, and traceability.

AI code generationSoftware TestingTestability
0 likes · 11 min read
How to Make AI‑Generated Code Testable, Traceable, and Feasible
FunTester
FunTester
Nov 18, 2025 · Artificial Intelligence

Why Unambiguous, Consistent Requirements Are Critical for AI Code Generation

In the age of AI‑driven code generation, requirements must be both unambiguous and consistent to avoid misinterpretation, unpredictable outputs, and faulty logic, ensuring that generated code aligns with stakeholder intent and maintains quality.

AI code generationConsistencyambiguity
0 likes · 7 min read
Why Unambiguous, Consistent Requirements Are Critical for AI Code Generation