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.
introduced solid-state memory. The IBM 1260 was used for adding machine-readable
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The single most important addition in V2 was a function to make my hooked methods lie about what they are:
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