* @param low 起始索引
full. append again has to allocate a new backing store, this time
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Not all the individuals the charity supports are rough sleepers - some will be sofa surfing, others may have recently moved into accommodation.
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writable: false means no code can reassign window.Audio to a different value. configurable: false means no code can even call Object.defineProperty again to change those settings. If fermaw’s initialisation code tried to restore the original Audio constructor (a perfectly sensible defensive move) the browser would either fail or throw a TypeError. The hook was permanent for the lifetime of the page.，这一点在雷电模拟器官方版本下载中也有详细论述