No matter what you assign to the b, it will be false since either the left or the right of the && operator is false.
This fragmentation hurts portability. Code that performs well on one runtime may behave differently (or poorly) on another, even though it's using "standard" APIs. The complexity burden on runtime implementers is substantial, and the subtle behavioral differences create friction for developers trying to write cross-runtime code, particularly those maintaining frameworks that must be able to run efficiently across many runtime environments.
，更多细节参见heLLoword翻译官方下载
'ExtrudeGeometry': () = {，详情可参考搜狗输入法2026
第七十一条 有下列行为之一的，处一千元以上三千元以下罚款；情节严重的，处五日以上十日以下拘留，并处一千元以上三千元以下罚款：，详情可参考旺商聊官方下载