Robot, take the wheel: What you need to know about autonomous vehicles rolling out across the U.S.
Prototype pollution defense: One test patches Object.prototype.then to intercept promise resolutions, then verifies that pipeTo() and tee() operations don't leak internal values through the prototype chain. This tests a security property that only exists because the spec's promise-heavy internals create an attack surface.
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// 易错点3：忘记stack.length判断 → 访问stack[-1]会报错