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The article explains how to use a custom URL schema together with a WebSocket channel to let a web page detect whether a mobile app is installed, attempt to launch it, and fall back to downloading the app when the launch fails, including practical blur‑event tricks.
On October 23, React 16.6.0 was released, introducing React.memo for function components, React.lazy with Suspense for code‑splitting, a simpler static contextType API, new error‑boundary methods, and deprecations in StrictMode, along with installation instructions and a detailed changelog.
The article explains what constitutes a fault, introduces key metrics such as RPO and RTO, and describes various fault isolation principles, patterns, and practical examples—including dependency degradation, failover, dynamic adjustment, fast‑fail, caching, rate limiting, and resource isolation—to improve system reliability.
This article explains how Lighthouse can measure JavaScript execution time, reveal unused code through coverage, and offers practical steps—such as sending only needed scripts, minifying, and removing dead code—to reduce JavaScript overhead and improve user experience on web pages.
This article examines why console.log may produce surprising results in different Chrome DevTools states, explains the underlying asynchronous I/O handling, and offers practical debugging advice for developers working with JavaScript in the browser.
Chrome 70 introduces several developer‑focused enhancements including Windows desktop support for Progressive Web Apps, added public‑key certificate support in the Credential Management API, and the ability to assign names to Web Workers, along with other updates such as Web Bluetooth and reporting APIs.
This article explains the concepts of Call Stack and Stack, demonstrates their operation with JavaScript examples, discusses Node.js default stack size and depth limits, shows how to query and adjust stack size, and examines V8's compilation optimizations across multiple Node versions.
V8 7.0, released on October 15, introduces memory‑saving Embedded built‑ins across platforms, preview support for WebAssembly threads via chrome://flags, new JavaScript features such as Symbol.prototype.description and a stable Array.prototype.sort using TimSort, plus API changes accessible through git logs and checkout commands.
This article explains how the CSS content property works with ::before and ::after pseudo‑elements, demonstrates which values are accepted or rejected—including numeric and calc() values—shows how to use counters and images, and highlights common pitfalls such as treating numbers as strings.
This article explains how Mozilla optimized the Firefox engine to dramatically speed up function calls between JavaScript and WebAssembly by reducing bookkeeping, eliminating trampolines, merging activations, applying monomorphic call optimizations, and improving built‑in function handling, resulting in call performance that now exceeds native JavaScript‑to‑JavaScript calls.
