This guide explains Uniapp5's five core page‑lifecycle callbacks—onLoad, onShow, onReady, onHide, and onUnload—their trigger moments, typical tasks, and characteristics, and shows how to choose the right callback for data requests while avoiding common pitfalls.
This article explains what the Back‑Forward Cache (bfcache) is, how it works across browsers, the page lifecycle events involved, common pitfalls that prevent caching, and practical testing methods to ensure optimal front‑end performance.
This article explains the architecture of a complete event‑tracking system, introduces two kinds of front‑end events, and details the technical design and implementation of the monitor‑tracer SDK for page visibility/active time as well as the monitor SDK for custom trigger events, including lifecycle monitoring, DOM observation, decorators, and React hooks.
This article provides a comprehensive overview of InnoDB's buffer pool, detailing its role as a data cache, the underlying data structures such as instances, chunks, and blocks, the page lifecycle from allocation to flushing, and discusses limitations of the default page‑cleaner implementation along with Percona's enhancements.
This guide walks you through the essential components of a WeChat mini‑program, covering global app.json configuration, the App() entry point with its lifecycle callbacks, and the Page() definition with its data and lifecycle methods, illustrated with practical examples.
The article offers a detailed three‑week debugging analysis of the WeChat Mini Program framework (base library 1.9.93), explaining its startup sequence, global variable initialization, core modules, loading and registration of app, custom components and pages, setData data binding, and performance impacts of component count and sub‑package design.
