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This article explains how Taro converts standard W3C CSS into HarmonyOS ArkUI styles, addressing unit and layout differences, using a Rust‑based LightningCSS plugin and the Yoga layout engine, and detailing the full style initialization, matching, application, and update workflow for cross‑platform React development.
This article presents a detailed, step‑by‑step guide on improving unit test coverage in large Java codebases, covering strategies such as mocking, divide‑and‑conquer, tool‑assisted test generation, reflection‑based coverage, Maven configuration, and practical tips for handling static methods, final classes, and test data replay.
This article shares a series of B‑side experience design case studies—including a digital keypad for streamlined data entry, task tip cards for instant guidance, floating cards to reduce navigation, and innovative data‑visualization components—illustrating how thoughtful interaction design can boost efficiency, reduce user friction, and foster a seamless product‑user rapport.
This article shares a recent graduate's journey into backend development at JD, offering practical advice for newcomers, detailing a large‑scale system refactor using domain‑driven design, discussing the creation of an AI‑powered merchant assistant, and emphasizing continuous learning and professional growth.
This article discusses how to write clean, maintainable Java methods by covering proper method signatures, limiting parameters, avoiding varargs misuse, validating inputs, minimizing side effects, handling exceptions correctly, writing concise method bodies, and providing effective logging and documentation practices.
The paper proposes a multimodal Reliable Feedback Network (RFNet) and a consistency‑regularized fine‑tuning method (RFFT) that dramatically increase the proportion of usable advertising images generated by diffusion models while preserving visual appeal, and introduces the large‑scale RF1M dataset for training and evaluation.
This article explains the end‑to‑end architecture, principles, and code implementation of the dynamic cross‑platform framework (Roma/Dynamic) on HarmonyOS, covering template loading, JS‑C++‑ArkTS instance creation, V‑Dom and Component tree construction, rendering pipeline, view updates, and performance optimizations.
This article explains how the Taro framework bridges React and HarmonyOS ArkUI by describing Taro's runtime architecture, the custom renderer implementation, and the step‑by‑step conversion of React components into ArkUI nodes, including code examples and key technical challenges.
This article explains what Prompt Engineering is, traces its development from early NLP commands to modern adaptive and multimodal prompting techniques, describes various prompting strategies such as Zero‑shot, Few‑shot, Chain‑of‑Thought, Auto‑CoT, and showcases a JD Logistics case study using these methods to classify product types with code examples.
This article analyzes the limitations of native Apache Kafka rate‑limiting, introduces JDQ's multi‑dimensional, dynamic, priority‑aware bandwidth control framework, and demonstrates its effectiveness through partition‑level, single‑machine, and hierarchical elastic throttling experiments for large‑scale e‑commerce data streams.
