The average developer experience for someone getting started with JavaScript is something like this:
An creates a completely separate browsing context with its own window object, its own document, and most importantly;its own prototype chain. A function hooked on HTMLMediaElement.prototype in the parent window is not the same object as HTMLMediaElement.prototype in the iframe’s window. They’re entirely separate objects. If fermaw’s audio element lived inside an iframe, my prototype hook in the parent window would never fire.，这一点在爱思助手下载最新版本中也有详细论述
督察发现，一些地方还存在历史遗留矿山生态修复滞后问题。昌平区未按要求将9座废弃矿山核定建档，“十四五”期间未开展修复治理；其中6座位于风景名胜区，面积共317亩。上口村废弃白云岩矿位于风景名胜区内，面积58亩，历史上开采形成的裸岩高达50米，大量废渣碎石随山体随意堆放。上口村一废弃金矿同样位于风景名胜区内，面积142亩，倾倒在山沟中的废渣被雨水冲刷，形成长约600米的侵蚀沟。，这一点在Line官方版本下载中也有详细论述
Debugging this was interesting enough that I wrote a full separate blog about it, but I’ll summarize here.，更多细节参见heLLoword翻译官方下载