This article, adapted from a university‑level front‑end lecture, explains what front‑end development is, how browsers render pages, the layered architecture of HTML, CSS, and JavaScript, and the modern tools and practices that turn static markup into interactive web applications.
The Alibaba Tech Open-Day held in Silicon Valley highlighted the company's global data‑center network, energy‑efficient designs, high‑speed networking, custom hardware, advanced system software, middleware solutions, and its ambitious NASA research program, while also recruiting top engineering talent for both US and China operations.
Senior Alibaba algorithm expert Jing Shi shares his six‑year journey from joining the company, the challenges of large‑scale ad click‑through‑rate modeling, the evolution from linear logistic regression to deep learning, and practical advice for aspiring AI engineers and interview candidates.
A MySQL fatal error claiming "Can't create/write to file ... (Errcode: 28)" turned out not to be a lack of disk space but exhausted inodes caused by millions of tiny maildrop files generated by cron‑driven Postfix notifications, and the article walks through the investigation and fix.
This article provides a comprehensive overview of microservice architecture, covering its definition, historical development, differences from monolithic systems, core characteristics, comparison with SOA, practical implementation concerns such as API gateways, communication, service discovery, fault tolerance, common design patterns, advantages, challenges, and a mindset shift required for successful adoption.
This article reviews the evolution of Meituan‑Dianping's MySQL high‑availability architecture over recent years, detailing the transition from the MMM replication manager to MHA, the integration of Zebra and Proxy middleware, and future design considerations such as distributed agents, semi‑synchronous replication, and MySQL Group Replication.
This article details Qunar's end‑to‑end hardware automation system, covering background challenges, lifecycle management, automated testing, data collection, fault detection, and visualized monitoring, and explains how the integrated platform reduces manual effort, improves reliability, and cuts operational costs.
This article curates over 20 machine‑learning cheat sheets—including algorithm overviews, Python libraries, and essential mathematics—compiled from various online sources and illustrated with downloadable diagrams, offering a comprehensive reference as of June 1 2017.
This guide explains how to assess and improve server performance by understanding key metrics such as CPU utilization, memory management, and disk I/O, introducing fundamental concepts, analysis methodologies like 5W2H and load‑characteristic summarization, and recommending practical Linux tools such as uptime, vmstat, top, perf, and DTrace for comprehensive troubleshooting.
Tech lead Tang Qiao shares his journey from iOS developer to product‑tech manager, explaining why engineers should consider management, debunking common misconceptions, and offering practical advice on time management, communication, mentorship, and upward management to help technical professionals transition into effective leadership roles.
In August 2017 MIT Technology Review honored Alibaba AI Lab chief scientist Wang Gang and Alibaba Cloud chief security scientist Wu Hanqing as part of its global TR35 young innovators, marking the first time two researchers from a Chinese company appeared on the prestigious list and highlighting China’s rising influence in AI and security research.
The article explains how SSD durability varies under high‑power, high‑temperature workloads, outlines the differences among SLC, pSLC, MLC, and TLC NAND, and advises OEM designers on selecting the appropriate industrial, commercial, OEM, or consumer‑grade SSD for reliable long‑term operation.
This article introduces Apache Kafka as a fast, scalable distributed publish‑subscribe system, explains its core components, Zookeeper coordination, startup workflow, key features, and common scenarios such as log collection, activity tracking, and stream processing.
This guide walks you through installing StrongSwan on a CentOS client, configuring IPSec tunnels, and creating a UCloud IPSec VPN gateway to achieve secure hybrid‑cloud network connectivity using VPN.
This article explains how to build a DevOps workflow using container orchestration, covering agile development with Docker image slimming, a Jenkins‑based CI/CD pipeline, simplified Gitflow, container monitoring with cAdvisor‑InfluxDB‑Grafana, and auto‑scaling via Marathon, while separating automated deployment from production release.
This article explains the shallow comparison used by React's PureComponent, details the implementation of shallowEqual and Object.is, and shows why such a shallow check cannot correctly compare nested objects, providing code examples and clear explanations.
This article explores how project management’s cost‑schedule‑quality triangle, ISO quality definitions, the software quality “iron triangle” of process, organization, and technology, and the six quality characteristics guide developers and testers in improving product quality through systematic thinking and practical testing methods.
The article outlines 17 essential questionnaire and interview design principles—covering question wording, option construction, and interview conduct—to help designers conduct reliable user research and obtain objective, actionable insights.
This tutorial walks you through creating a simple content management system using Flask, demonstrating how to set up the environment, define SQLAlchemy models, generate an admin interface with Flask‑Admin, and expose RESTful endpoints with Flask‑Restless, all within about an hour of development.
This article compares FMDB and WCDB, detailing smooth migration steps, benchmark results showing WCDB's superior write and multithreaded performance, reduced code complexity, built‑in encryption, statistics and repair tools, and provides practical guidance for developers considering a database switch.
