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函数、对象、异步编程...JavaScript的魔力无穷，理解事件循环和闭包，让代码如诗如画地运行吧！`Promise`和`async/await`，你的代码会讲故事吗？📜✨
前端三大框架，你更钟爱哪一个？React的组件化思维，Vue的简洁高效，Angular的全栈魅力，哪个是你心中的王者？重构和优化，你会如何抉择？🛠️👑
DOM操作的灵活运用和Ajax实现数据交互，这可是面试官检验你是否“活在当下”的关键点。`MutationObserver`和`fetch`，你驾驭得如何？👀💨
面对性能瓶颈和跨域限制，你是如何优雅解决的？懒加载、CDN加速，甚至是服务端渲染，你的解决方案让人眼前一亮吗？gzip vs. brotli，你选谁？圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔圔
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