JS 动画慢的真正的原因只有一个：JS 动画跑在 main thread 上，跟应用里的所有其他 JS 抢 CPU。 做前端动画的，几乎都听过这句话："CSS 动画比 JavaScript 快，能用 CSS 就别用 JS。" 但很少有人追问：为什么快 ...

The client is the computer system (including tablets and mobile devices) that is running the web browser. Client-side scripts are interpreted by the browser and executed on the client system.

For those who lose track of time scrolling on X (Twitter): Place a fake X icon on your home screen. When you can't resist the temptation and click it, you get scolded: "Kora Kora!" (Hey, stop that!). ...