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This article explains how WebRTC peers negotiate media capabilities using SDP, covering the signaling process, the offer/answer exchange, front‑end code examples, and a detailed breakdown of SDP syntax and its role in establishing audio‑video connections.
This tutorial walks you through creating a WeChat mini‑program named "Home Items Museum" using Cloud Development, covering quick start, database setup with CMS, cloud functions, cloud storage, open data handling, and deployment, complete with code examples and screenshots.
This article explains why React Hooks were introduced, walks through the fundamentals of useState and useEffect with clear code examples, and demonstrates how Hooks simplify state management, side‑effects, and component logic compared to traditional class components, enabling more maintainable frontend development.
This article explains the core web performance metrics—First Paint, First Contentful Paint, Time to Interactive, Largest Contentful Paint, and First Meaningful Paint—along with how to retrieve them via the Performance API, calculate them, and interpret their impact on user experience.
This article shares practical techniques for improving Cocos Creator game performance by reducing black‑screen time, minimizing CPU draw‑calls, and managing memory through resource compression, atlasing, cache modes, node pooling, and texture compression, all illustrated with step‑by‑step examples and screenshots.
This article recounts a Tencent front‑end engineer’s QCon 2021 talk on upgrading to a serverless‑based full‑stack development model, covering business motivations, the SCF implementation process, migration to TKE, tooling, DevOps practices, cost optimization, and future technical directions.
This guide explains what TypeScript declaration (.d.ts) files are, when they’re needed, and provides step‑by‑step examples for writing global, npm‑package, and module‑augmentation declarations, plus configuration tips for automatic generation in modern JavaScript projects.
This article explains the concept of Capture Value in React Hooks, demonstrates the issue with asynchronous state updates using a button example, and shows how to resolve it with useRef, while also providing a simplified custom hook implementation and deeper insight into hook internals.
libtask, a lightweight coroutine library written by Russ Cox, demonstrates how to build a cooperative multitasking scheduler in C, detailing task creation, context switching, epoll‑based I/O handling, and a non‑preemptive FIFO scheduling model that enables asynchronous I/O to appear synchronous for server development.
This article walks through building a front‑end‑only tool that reads student data from Excel, creates customized poster images using SheetJS, html2canvas, and JSZip, and solves out‑of‑memory crashes by analyzing JavaScript heap usage, refactoring recursive code, and optimizing DOM cloning with ignoreElements.
