20:29, 2 марта 2026Забота о себе
We could have just focused on an OS, but apps and online services are crucial components of our everyday experience, too.
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Make sure we have enough space to draw the progress bars! This is done by writing "\n" * count when the function starts. This creates a series of newlines that makes the terminal scroll, ensuring that there are exactly count blank lines at the bottom of the terminal for the progress bars to be rendered on，详情可参考夫子
The duration to apply the DOM changes dropped by 45% when we were able to remove JS glue code. DOM operations can already be expensive; WebAssembly users can’t afford to pay a 2x performance tax on top of that. And as this experiment shows, it is possible to remove the overhead.，这一点在Line官方版本下载中也有详细论述
The problem is that so far, we have never actually cleared the entire line: we've always just written the new characters over the old characters, assuming that the string of new characters would be longer and over-write them. This is no longer true once we can delete characters.