WebAssembly 前端数据处理与持久化

`title: WebAssembly 前端数据处理与持久化``categories: Web 开发/前端/数据管理``keywords: WebAssembly,WASM,性能,二进制处理,IndexedDB,OPFS``description: 通过 WebAssembly 在前端高性能处理二进制数据，并将结果持久化到 IndexedDB 或 OPFS，适合多媒体与大数据场景。`加载与调用async function loadWasm(url) { const { instance } = await WebAssembly.instantiateStreaming(fetch(url)); return instance.exports; } async function processAndSave(url, input, name) { const wasm = await loadWasm(url); const out = wasm.process(input.byteOffset, input.length); const root = await navigator.storage.getDirectory(); const handle = await root.getFileHandle(name, { create: true }); const writable = await handle.createWritable(); await writable.write(out); await writable.close(); }