No language is immortal—Node.js isn’t either—but thoughtful reflection is priceless. This underground community for Node.js enthusiasts was started by Taobao’s Front‑End Team (FED) to share our original insights and viewpoints from working with Node.js. Follow us. BTW, we’re hiring.
The article explains how V8’s built‑in methods, originally placed far from JIT‑generated code, cause costly branch‑prediction failures on 64‑bit CPUs, and how copying these snippets into a nearby memory region reduces mispredictions and improves performance at a modest memory cost.
This article reviews the current state of Kubernetes horizontal and vertical autoscaling, compares HPA, VPA, and KNative KPA, discusses their limitations, and proposes short‑ and long‑term ideas for a more dynamic, low‑ops scheduling system.
This article explores effective logging strategies in Node.js, comparing active console output with passive library-based recording, introducing popular modules such as debug and util.debuglog, detailing log format components, and demonstrating context-aware logging implementations to improve debugging and operational monitoring.
This article explains how JavaScript and C++ exceptions work in Node.js native addons, compares traditional v8::TryCatch handling with the newer Maybe-based approach in node-addon-api v4.1.0, and shows practical code examples for reliable error management.
This article explains what CPU‑bound tasks are, why Node.js struggles with them, and presents three practical solutions—splitting work with setImmediate, offloading to child processes, and leveraging worker_threads—illustrated with a Fibonacci calculation example and complete code snippets.
Learn how to effectively debug Node.js applications by leveraging environment variables like DEBUG and NODE_DEBUG, interpreting process exit codes, handling deprecated APIs, detecting synchronous I/O, and managing unhandled promise rejections, with practical code examples and command-line flags to streamline troubleshooting.
This article explores how various export syntaxes in ES modules affect the binding behavior of imported values in Node.js, demonstrating differences between named exports, default exports, destructuring, and circular dependencies with clear code examples.
This article explains the historic concept of Activation (or Variable) Objects in ECMAScript 1/3, how they were replaced by Lexical Environments in ES5+, and how the broader notion still helps understand closures and stack frames in modern JavaScript.
Learn step‑by‑step how to install Midway’s Prometheus plugin, configure Docker‑based Prometheus and Grafana, expose metrics from a Node.js app, and visualize them in Grafana dashboards, enabling effective monitoring and operations for your services.
This guide explains how to efficiently debug Node.js applications using built‑in inspector flags, breakpoints, Chrome's inspect UI, and VSCode integration, covering setup, command‑line options, configuration files, and advanced features like AutoAttach for a smoother development workflow.
