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A Practical Guide to Converting HTML Strings into DOM Nodes

Converting an HTML string into real DOM nodes sounds simple, but the browser gives us several APIs with different tradeoffs. Some are fast, some are safer, some require a valid...
Using ffmpeg.wasm to Implement Multi-Audio and Video Compositing Entirely on the Front End

Front-end video generation sounds simple until audio enters the picture. If all you need is visual recording, the browser already gives you several options. canvas.captureStream...
Using `navigator.connection.downlink` to Measure Network Speed on the Front End

For feed-style products like Weibo, image lists are everywhere. On mobile, those images are often served as 2x or even 3x assets to preserve visual quality on high-density scree...
First Impressions of Vap, Tencent’s Open-Source Solution for Playing Cool Animations

A colleague recently mentioned Vap in our group chat. The description was simple: it can play flashy animation effects, and more importantly, it supports transparent animation b...
JS Video Decoding: An Out-of-the-Box Review of JSMpeg and Broadway

Last week, I tried Vap , a player that can use WebGL to decode and play videos, and wrote an article documenting the experience. Someone commented under that article: if all I w...

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