{"id":4648,"date":"2025-05-29T14:02:56","date_gmt":"2025-06-04T06:10:56","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=4648"},"modified":"2025-06-04T14:02:56","modified_gmt":"2025-06-04T06:10:56","slug":"%e8%a7%a3%e6%b1%bareact-js%e4%b8%ad%e7%9a%84uncaughtreferenceerrorreactisnotdefined%e9%8c%af%e8%aa%a4","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/react-js\/%e8%a7%a3%e6%b1%bareact-js%e4%b8%ad%e7%9a%84uncaughtreferenceerrorreactisnotdefined%e9%8c%af%e8%aa%a4\/","title":{"rendered":"\u7834\u89e3 React.js \u4e2d\u7684 “Uncaught ReferenceError: React is not defined” \u932f\u8aa4\uff1a\u5feb\u901f\u89e3\u6c7a\u6307\u5357"},"content":{"rendered":"

<\/p>\n

\u7834\u89e3 React.js \u4e2d\u7684 “Uncaught ReferenceError: React is not defined” \u932f\u8aa4\uff1a\u5feb\u901f\u89e3\u6c7a\u6307\u5357<\/h1>\n

\u5728 Web \u958b\u767c\u4e2d\uff0cReact.js \u662f\u4e00\u500b\u5f37\u5927\u7684 JavaScript \u5eab\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u69cb\u5efa\u9ad8\u6548\u3001\u4e92\u52d5\u6027\u5f37\u7684\u7528\u6236\u754c\u9762\u3002\u7136\u800c\uff0c\u8a31\u591a\u65b0\u624b\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u4e00\u500b\u5e38\u898b\u7684\u932f\u8aa4\uff1a”Uncaught ReferenceError: React is not defined”\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u554f\u984c\u7684\u539f\u56e0\u53ca\u89e3\u6c7a\u65b9\u6cd5\uff0c\u8b93\u60a8\u5feb\u901f\u6062\u5fa9\u958b\u767c\u9032\u5ea6\u3002<\/p>\n

\u4e86\u89e3 React.js<\/h2>\n

React.js \u662f\u7531 Facebook \u958b\u767c\u7684\u958b\u6e90 JavaScript \u5eab\uff0c\u5c08\u9580\u7528\u65bc\u69cb\u5efa\u7528\u6236\u754c\u9762\u3002\u5b83\u7684\u8a2d\u8a08\u7406\u5ff5\u662f\u7d44\u4ef6\u5316\uff0c\u8b93\u958b\u767c\u8005\u80fd\u5920\u5efa\u7acb\u53ef\u91cd\u7528\u7684 UI \u7d44\u4ef6\uff0c\u5f9e\u800c\u63d0\u5347\u958b\u767c\u6548\u7387\u548c\u9805\u76ee\u7dad\u8b77\u6027\u3002<\/p>\n

\u4ec0\u9ebc\u662f “Uncaught ReferenceError: React is not defined”\uff1f<\/h2>\n

“Uncaught ReferenceError: React is not defined” \u662f\u4e00\u500b\u5e38\u898b\u7684 JavaScript \u932f\u8aa4\uff0c\u8868\u660e\u5728\u60a8\u7684\u4ee3\u78bc\u4e2d\u4f7f\u7528\u4e86 React \u76f8\u95dc\u7684\u529f\u80fd\uff0c\u4f46\u700f\u89bd\u5668\u672a\u80fd\u627e\u5230 React \u7684\u5b9a\u7fa9\u3002\u9019\u901a\u5e38\u662f\u56e0\u70ba React.js \u5eab\u672a\u6b63\u78ba\u5f15\u5165\u3002<\/p>\n

\u5982\u4f55\u4fee\u5fa9 “Uncaught ReferenceError: React is not defined” \u932f\u8aa4<\/h2>\n

\u8981\u4fee\u5fa9\u9019\u500b\u554f\u984c\uff0c\u60a8\u9700\u8981\u78ba\u4fdd React.js \u5eab\u5df2\u6b63\u78ba\u5f15\u5165\u5230\u9805\u76ee\u4e2d\u3002\u4ee5\u4e0b\u662f\u5169\u7a2e\u4e3b\u8981\u7684\u65b9\u6cd5\uff1a<\/p>\n

1. \u4f7f\u7528 CDN \u5f15\u5165 React.js<\/h3>\n

\u900f\u904e CDN\uff08\u5167\u5bb9\u5206\u767c\u7db2\u8def\uff09\u5f15\u5165 React.js \u662f\u4e00\u7a2e\u5feb\u901f\u4e14\u7c21\u55ae\u7684\u65b9\u6cd5\u3002\u53ea\u9700\u5728\u60a8\u7684 HTML \u6587\u4ef6\u7684 \u6a19\u7c64\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u78bc\uff1a<\/p>\n

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