The solver takes the LLB graph and executes it. Each vertex in the DAG is content-addressed, so if you’ve already built a particular step with the same inputs, BuildKit skips it entirely. This is why BuildKit is fast: it doesn’t just cache layers linearly like the old Docker builder. It caches at the operation level across the entire graph, and it can execute independent branches in parallel.
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.
，这一点在同城约会中也有详细论述
For the film, the director asked him to dress up as an admiral. It was for a cameo scene, shaking hands with Hanks when the crew were rescued from the sea.
Try our other sports emails: there’s daily football news and gossip in The Fiver, and weekly catch-ups for cricket in The Spin and rugby union in The Breakdown.