{"id":4658,"date":"2023-01-04T17:20:10","date_gmt":"2023-01-04T09:20:10","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=4658"},"modified":"2023-01-04T17:20:10","modified_gmt":"2023-01-04T09:20:10","slug":"%e8%a7%a3%e6%b1%bareact-jsfailedtocompileelementtypeisinvalid%e9%8c%af%e8%aa%a4","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/react-js\/%e8%a7%a3%e6%b1%bareact-jsfailedtocompileelementtypeisinvalid%e9%8c%af%e8%aa%a4\/","title":{"rendered":"\u89e3\u6c7aReact.js&#8221;Failedtocompile:Elementtypeisinvalid&#8221;\u932f\u8aa4"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"React.js, Failed to compile, Element type is invalid, expected a string, built-in components, composite components, object\"><\/p>\n<h1>\u89e3\u6c7a React.js &#8220;Failed to compile: Element type is invalid: expected a string (for built-in components) or a class\/function (for composite components) but got: object&#8221; \u932f\u8aa4<\/h1>\n<p>React.js \u662f\u4e00\u500b\u7528\u65bc\u69cb\u5efa\u7528\u6236\u754c\u9762\u7684 JavaScript \u5eab\uff0c\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5feb\u901f\u69cb\u5efa\u529f\u80fd\u5f37\u5927\u7684 Web \u61c9\u7528\u7a0b\u5e8f\u3002\u7136\u800c\uff0c\u5728\u4f7f\u7528 React.js \u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u554f\u984c\uff0c\u5176\u4e2d\u4e00\u500b\u662f &#8220;Failed to compile: Element type is invalid: expected a string (for built-in components) or a class\/function (for composite components) but got: object&#8221; \u932f\u8aa4\u3002<\/p>\n<p>\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u662f\u56e0\u70ba\u958b\u767c\u8005\u5728\u4f7f\u7528 React.js \u6642\uff0c\u6c92\u6709\u6b63\u78ba\u5730\u5b9a\u7fa9\u5143\u7d20\u985e\u578b\u3002React.js \u5c07\u5143\u7d20\u985e\u578b\u5b9a\u7fa9\u70ba\u5b57\u7b26\u4e32\uff08\u7528\u65bc\u5167\u7f6e\u7d44\u4ef6\uff09\u6216\u985e\/\u51fd\u6578\uff08\u7528\u65bc\u8907\u5408\u7d44\u4ef6\uff09\uff0c\u4f46\u662f\u958b\u767c\u8005\u537b\u5c07\u5176\u5b9a\u7fa9\u70ba\u5c0d\u8c61\u3002<\/p>\n<h2>\u89e3\u6c7a\u8a72\u932f\u8aa4\u7684\u65b9\u6cd5<\/h2>\n<p>\u8981\u89e3\u6c7a\u9019\u500b\u932f\u8aa4\uff0c\u958b\u767c\u8005\u9700\u8981\u78ba\u4fdd\u4ed6\u5011\u6b63\u78ba\u5730\u5b9a\u7fa9\u5143\u7d20\u985e\u578b\u3002\u5982\u679c\u958b\u767c\u8005\u6b63\u5728\u4f7f\u7528\u5167\u7f6e\u7d44\u4ef6\uff0c\u4ed6\u5011\u61c9\u8a72\u5c07\u5143\u7d20\u985e\u578b\u5b9a\u7fa9\u70ba\u5b57\u7b26\u4e32\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre class=\"brush: javascript\">\nconst element = <div>Hello World!<\/div>\n<\/pre>\n<p>\u5982\u679c\u958b\u767c\u8005\u6b63\u5728\u4f7f\u7528\u8907\u5408\u7d44\u4ef6\uff0c\u4ed6\u5011\u61c9\u8a72\u5c07\u5143\u7d20\u985e\u578b\u5b9a\u7fa9\u70ba\u985e\/\u51fd\u6578\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre class=\"brush: javascript\">\nclass MyComponent extends React.Component {\n  render() {\n    return <div>Hello World!<\/div>\n  }\n}\n\nconst element = <MyComponent \/>\n<\/pre>\n<p>\u53e6\u5916\uff0c\u958b\u767c\u8005\u9084\u53ef\u4ee5\u4f7f\u7528 React.createElement() \u4f86\u5275\u5efa\u5143\u7d20\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre class=\"brush: javascript\">\nconst element = React.createElement('div', null, 'Hello World!')\n<\/pre>\n<p>\u9019\u6a23\uff0c\u958b\u767c\u8005\u5c31\u53ef\u4ee5\u89e3\u6c7a &#8220;Failed to compile: Element type is invalid: expected a string (for built-in components) or a class\/function (for composite components) but got: object&#8221; 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