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Recent posts in JavaScript on DZone.com

Node.js Microservices Architecture: A Complete Guide

Most teams don't decide to build microservices. They get pushed into it. One app grows for a couple of years. More people push into the same codeba...
Posted on 2 September 2026 | 3:00 pm

The Code-Volume Delusion: Rethinking Engineering Velocity in the AI Era

Let's be honest about what happens when you give an entire engineering team AI coding assistants. You look at the sprint board, and tickets are mov...
Posted on 25 August 2026 | 3:00 pm

Text Analysis Without a Backend: Replacing an LLM Call With Intl.Segmenter and 60 Lines of JavaScript

Last spring, I had six small text features to build: flag filler phrases in a draft, score sentence-length variation, format a citation, check a ...
Posted on 24 August 2026 | 6:00 pm

Stop Hand-Rolling Chat UIs: Streaming LLM Tokens Into React Native Without the Jank

A chat screen looks like a weekend project: a list of bubbles and a text input pinned to the bottom. In React Native, it is one of the hardest thin...
Posted on 20 August 2026 | 6:00 pm

A Framework-Agnostic Approach to SSR for Microfrontends

On one of our projects, we were building microfrontends, and at some point we wanted to add SSR. The reasons were the usual ones: better first pain...
Posted on 11 August 2026 | 1:00 pm

How We Cut PyFlink Pipeline p99 Latency from 3-5 Seconds to ~500ms

The Problem: Our p99 Was 3-5 Seconds Our PyFlink pipeline was missing its latency SLO by seconds. The pipeline itself was straightforward: consume ...
Posted on 7 August 2026 | 4:00 pm

Refresh Token Rotation in Node.js: Stopping Token Theft Without Logging Users Out

JWT-based authentication is simple to start with and surprisingly hard to get right. The naive setup of a long-lived access token stored in the bro...
Posted on 22 July 2026 | 5:00 pm

React 19 Killed Half My Performance Optimization Code, and I'm Grateful

I maintain a React admin dashboard codebase that had — at last count before upgrading to React 19 — 34 instances of useMemo, 28 instances of useCal...
Posted on 22 July 2026 | 4:00 pm

Add Observability to Your React Native Application in 5 Minutes

In modern application development, feature flags are the guardrails that keep experiments controlled and rollbacks safe when conditions shift. If f...
Posted on 6 July 2026 | 3:00 pm

Dead Letter Queue Patterns in Apache Flink: Handling Poison Messages Without Stopping Your Stream

Streaming systems usually fail in one of two ways: Loudly, when infrastructure breaks Quietly, when one bad record keeps replaying until th...
Posted on 2 July 2026 | 1:00 pm

AI-Augmented React Development: How I Rebuilt My Workflow Without Losing Control of the Code

Every React developer reaches a point where the sheer volume of boilerplate starts to slow them down. Prop drilling, repetitive hook patterns, comp...
Posted on 1 July 2026 | 2:00 pm

Fix the Target, Precompute Once: A Backend-Free Word-Ladder Solver With a BFS Distance Field

When you build an interactive puzzle, the latency budget is unforgiving. Every keystroke needs an answer that feels instant. A daily word-ladder ga...
Posted on 22 June 2026 | 1:00 pm

The Real-Time Revolution: Why Blockchain Needs Data Stream Processing

Blockchain is an extremely data-driven technology because its primary function is to store, verify, and coordinate independent records in a secure,...
Posted on 17 June 2026 | 6:00 pm

Migrate a Hardcoded LangGraph Agent to LaunchDarkly AI Configs in 20 Minutes

In this tutorial, you’ll run a small LangGraph agent locally, then migrate its hardcoded prompts, model choice, and tools into LaunchDarkly AI Conf...
Posted on 2 June 2026 | 4:00 pm

Alternative Structured Concurrency

Java structured concurrency has been under development for a span of 5 years, weaving through 8 (!) distinct JEPs (JEP 428, JEP 437, JEP 453, JEP 4...
Posted on 2 June 2026 | 2:00 pm

Building Enterprise-Grade Real-Time IoT Dashboards with Vue 3, MQTT, and Kafka

The convergence of IoT, real-time data streaming, and modern frontend frameworks is redefining how engineers build enterprise monitoring systems. O...
Posted on 26 May 2026 | 3:00 pm

Zone-Free Angular: Unlocking High-Performance Change Detection With Signals and Modern Reactivity

Angular’s move toward zoneless change detection is a change in scheduling semantics rather than a removal of change detection. Instead of using Zon...
Posted on 20 May 2026 | 8:00 pm

Stop Writing Dialect-Specific SQL: A Unified Query Builder for Node.js

The Problem Most Backend Developers Face You're building a SaaS application that needs to support multiple databases. Or maybe you're migrating fro...
Posted on 20 May 2026 | 5:00 pm

Lambda-Driven API Design: Building Composable Node.js Endpoints With Functional Primitives

“Lambda-driven API design” fits naturally with Node.js because a Lambda handler can be treated as a small, explicit function boundary: an event arr...
Posted on 19 May 2026 | 3:00 pm

When Angular APIs Return 200 but the Frontend Is Already Failing Users

Successful HTTP requests have become a deceptively comforting metric in modern web systems. Dashboards show low latency, the network tab fills with...
Posted on 8 May 2026 | 6:00 pm