{"id":47,"date":"2026-09-01T01:21:37","date_gmt":"2026-08-31T17:21:37","guid":{"rendered":"https:\/\/www.ziliaochi.cn\/index.php\/2026\/09\/01\/react-19-compiler-memo\/"},"modified":"2026-09-02T00:40:08","modified_gmt":"2026-09-01T16:40:08","slug":"react-19-compiler-memo","status":"publish","type":"post","link":"https:\/\/www.ziliaochi.cn\/index.php\/2026\/09\/01\/react-19-compiler-memo\/","title":{"rendered":"React 19.2 \u7f16\u8bd1\u5668\u65f6\u4ee3\uff1auseMemo\u3001useCallback \u8fd8\u8981\u4e0d\u8981\u624b\u5199"},"content":{"rendered":"
\n
\u5173\u952e\u8bcd<\/span>React 19\u3001React Compiler\u3001useMemo\u3001useCallback\u3001\u81ea\u52a8\u8bb0\u5fc6\u5316\u3001\u524d\u7aef\u6027\u80fd\u4f18\u5316<\/div>\n
\n
\u76ee\u5f55<\/div>\n
    \n
  1. \u4e00\u3001\u7248\u672c\u5750\u6807<\/a><\/li>\n
  2. \u4e8c\u3001React Compiler \u5230\u5e95\u505a\u4e86\u4ec0\u4e48<\/a><\/li>\n
  3. \u4e09\u3001\u4e09\u79cd\u5199\u6cd5\u7684\u5bf9\u6bd4<\/a><\/li>\n
  4. \u56db\u3001\u5de5\u7a0b\u843d\u5730\uff1a\u8001\u9879\u76ee\u600e\u4e48\u63a5<\/a><\/li>\n
  5. \u4e94\u3001\u5c0f\u7ed3<\/a><\/li>\n<\/ol>\n<\/div>\n

    React 19.2 \u4e4b\u540e\uff0cReact Compiler \u6b63\u5f0f\u8fdb\u5165\u7a33\u5b9a\u53ef\u7528\u9636\u6bb5\u3002\u5b83\u5e26\u6765\u4e86\u4e00\u4e2a\u8db3\u4ee5\u6539\u53d8\u65e5\u5e38\u7f16\u7801\u4e60\u60ef\u7684\u80fd\u529b\uff1a\u81ea\u52a8\u8bb0\u5fc6\u5316\uff08auto-memoization\uff09<\/strong>\u3002\u4e8e\u662f\u793e\u533a\u91cc\u6700\u5e38\u88ab\u95ee\u7684\u4e00\u53e5\u8bdd\u53d8\u6210\u4e86\u2014\u2014useMemo<\/code>\u3001useCallback<\/code>\u3001React.memo<\/code> \u662f\u4e0d\u662f\u53ef\u4ee5\u5168\u5220\u4e86\uff1f<\/p>\n

    \u7b54\u6848\u662f\uff1a\u5927\u90e8\u5206\u53ef\u4ee5\u5220\uff0c\u4f46\u6709\u51e0\u79cd\u60c5\u51b5\u5fc5\u987b\u4fdd\u7559\u3002<\/strong>\u672c\u6587\u8bb2\u6e05\u7f16\u8bd1\u5668\u7684\u5de5\u4f5c\u8fb9\u754c\u3001\u4e09\u7c7b\u4ecd\u7136\u9700\u8981\u624b\u5199\u8bb0\u5fc6\u5316\u7684\u573a\u666f\uff0c\u4ee5\u53ca\u8001\u9879\u76ee\u6e10\u8fdb\u63a5\u5165\u7684\u53ef\u6267\u884c\u65b9\u6848\u3002<\/p>\n

    \u4e00\u3001\u7248\u672c\u5750\u6807<\/h2>\n

    \u622a\u81f3 2026 \u5e74 9 \u6708\uff0creact<\/code> \u4e0e react-dom<\/code> \u7684\u6700\u65b0\u7248\u672c\u4e3a 19.2.8<\/strong>\u3002React Compiler \u81ea 19.2 \u8d77\u53ef\u4ee5\u4f5c\u4e3a\u7a33\u5b9a\u80fd\u529b\u4f7f\u7528\uff0c\u914d\u5957\u7684\u4ee3\u7801\u68c0\u67e5\u7531 eslint-plugin-react-hooks<\/code> \u63d0\u4f9b\u3002\u7248\u672c\u4fe1\u606f\u53ef\u968f\u65f6\u5728 npm \u4e0a\u7684 react \u5305\u9875\u9762<\/a>\u6838\u5bf9\u3002<\/p>\n

    \u4e8c\u3001React Compiler \u5230\u5e95\u505a\u4e86\u4ec0\u4e48<\/h2>\n

    \u4e00\u53e5\u8bdd\u6982\u62ec\uff1a\u7f16\u8bd1\u5668\u5728\u6784\u5efa\u671f\u5206\u6790\u7ec4\u4ef6\u7684\u6570\u636e\u6d41\uff0c\u81ea\u52a8\u63d2\u5165\u7b49\u4ef7\u7684\u8bb0\u5fc6\u5316\u4ee3\u7801<\/strong>\uff0c\u8ba9\u7ec4\u4ef6\u5728 props \u6216\u72b6\u6001\u6ca1\u6709\u672c\u8d28\u53d8\u5316\u65f6\u8df3\u8fc7\u91cd\u6e32\u67d3\u3002<\/p>\n

    \u5b83\u5206\u6790\u7684\u6838\u5fc3\u95ee\u9898\u662f\u2014\u2014\u54ea\u4e9b\u503c\u7684\u53d8\u5316\u4f1a\u771f\u6b63\u5f71\u54cd\u8f93\u51fa\u3002\u5bf9\u4e8e\u7eaf\u8ba1\u7b97\u3001\u5b57\u9762\u91cf\u3001\u4ee5\u53ca\u4f9d\u8d56\u94fe\u6e05\u6670\u7684\u503c\uff0c\u7f16\u8bd1\u5668\u80fd\u5b89\u5168\u5730\u63a8\u5bfc\u51fa\u7f13\u5b58\u8fb9\u754c\uff1b\u5bf9\u4e8e\u5b83\u65e0\u6cd5\u8bc1\u660e\u5b89\u5168\u7684\u60c5\u51b5\uff0c\u4f1a\u9009\u62e9 bail out\uff08\u653e\u5f03\u4f18\u5316\uff09<\/strong>\uff0c\u9000\u56de\u666e\u901a\u91cd\u6e32\u67d3\uff0c\u800c\u4e0d\u662f\u7ed9\u51fa\u9519\u8bef\u7ed3\u679c\u3002<\/p>\n

    \"React
    React Compiler \u5de5\u4f5c\u94fe\u8def\uff1a\u7f16\u8bd1\u671f\u5206\u6790\u6570\u636e\u6d41\uff0c\u81ea\u52a8\u63d2\u5165\u7b49\u4ef7\u7684\u8bb0\u5fc6\u5316\u4ee3\u7801<\/figcaption><\/figure>\n

    \u7406\u89e3\u8fd9\u4e00\u70b9\u5f88\u91cd\u8981\uff1a\u7f16\u8bd1\u5668\u4f18\u5148\u4fdd\u8bc1\u6b63\u786e\u6027\uff0c\u5176\u6b21\u624d\u662f\u6027\u80fd<\/strong>\u3002\u6240\u4ee5”\u5f00\u4e86\u7f16\u8bd1\u5668\u5c31\u4e00\u5b9a\u66f4\u5feb”\u662f\u8bef\u89e3\uff0c\u5b83\u53ea\u662f\u628a\u624b\u5199\u8bb0\u5fc6\u5316\u91cc\u5927\u91cf\u673a\u68b0\u3001\u6613\u9519\u7684\u90e8\u5206\u81ea\u52a8\u5316\u4e86\u3002<\/p>\n

    \u4e09\u3001\u4e09\u79cd\u5199\u6cd5\u7684\u5bf9\u6bd4<\/h2>\n

    \u4ee5”\u8fc7\u6ee4\u4e00\u4e2a\u5927\u5217\u8868”\u4e3a\u4f8b\u3002<\/p>\n

    1. \u5b8c\u5168\u624b\u5199\uff08\u7f16\u8bd1\u5668\u65f6\u4ee3\u4e4b\u524d\uff09<\/h3>\n
    function List({ items, keyword }) {\n  const filtered = useMemo(\n    () => items.filter(i => i.name.includes(keyword)),\n    [items, keyword]\n  )\n  const onSelect = useCallback((id) => { \/* ... *\/ }, [])\n  return <Table data={filtered} onSelect={onSelect} \/>\n}\n\nexport default React.memo(List)\n<\/code><\/pre>\n
    \u95ee\u9898\u5728\u4e8e\u4f9d\u8d56\u6570\u7ec4\u9760\u4eba\u7ef4\u62a4\uff1a\u6f0f\u5199\u4f1a\u62ff\u5230\u8fc7\u671f\u503c\uff0c\u591a\u5199\u4f1a\u8ba9\u7f13\u5b58\u5931\u6548\uff0c\u800c onSelect<\/code> \u8fd9\u7c7b\u56de\u8c03\u7ecf\u5e38\u56e0\u4e3a”\u5fd8\u4e86\u5305\u4e00\u5c42”\u5bfc\u81f4\u5b50\u7ec4\u4ef6\u5929\u5929\u91cd\u6e32\u67d3\u3002<\/p>\n
    2. \u7f16\u8bd1\u5668\u63a5\u7ba1\u540e<\/h3>\n
    function List({ items, keyword }) {\n  const filtered = items.filter(i => i.name.includes(keyword))\n  const onSelect = (id) => { \/* ... *\/ }\n  return <Table data={filtered} onSelect={onSelect} \/>\n}\n<\/code><\/pre>\n
    \u4ee3\u7801\u56de\u5230\u6700\u81ea\u7136\u7684\u6837\u5b50\uff0c\u7f13\u5b58\u7531\u7f16\u8bd1\u5668\u63d2\u5165\u3002\u53ef\u8bfb\u6027\u548c\u6b63\u786e\u6027\u7684\u6536\u76ca\u7acb\u7aff\u89c1\u5f71\u2014\u2014\u5c24\u5176\u662f\u65b0\u4eba\u4e0d\u7406\u89e3\u4f9d\u8d56\u6570\u7ec4\u8bed\u4e49\u65f6\u9020\u6210\u7684\u9690\u6027 bug\u3002<\/p>\n
    3. \u4ecd\u7136\u9700\u8981\u624b\u5199\u7684\u573a\u666f<\/h3>\n
    \u4e0b\u9762\u4e09\u7c7b\uff0c\u7f16\u8bd1\u5668\u5e2e\u4e0d\u4e0a\u5fd9\u6216\u8005\u4e0d\u8be5\u5e2e\uff1a<\/p>\n