postMessage 大数据传输与 StructuredClone 协作

`title: postMessage 大数据传输与 StructuredClone 协作``categories: Web 开发/前端/数据管理``keywords: postMessage,StructuredClone,ArrayBuffer,Worker,传输``description: 使用 postMessage 与 StructuredClone 在主线程与 Worker 间高效传输大数据，采用可转移对象与持久化协作降低复制开销。`传输示例const w = new Worker('/worker.js'); const buf = new ArrayBuffer(1024 * 1024); w.postMessage({ type: 'data', buf }, [buf]); Worker 侧self.onmessage = e => { const { buf } = e.data; // 持久化或处理后回传结果 };