{"id":5957,"date":"2023-01-06T15:46:12","date_gmt":"2023-01-06T07:46:12","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5957"},"modified":"2023-01-06T15:46:12","modified_gmt":"2023-01-06T07:46:12","slug":"%e4%ba%86%e8%a7%a3react%e4%b8%adportals%e7%9a%84dom%e6%8c%82%e8%bd%bd%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/react-js\/%e4%ba%86%e8%a7%a3react%e4%b8%adportals%e7%9a%84dom%e6%8c%82%e8%bd%bd%e6%96%b9%e6%b3%95\/","title":{"rendered":"\u4e86\u89e3React\u4e2dPortals\u7684DOM\u6302\u8f7d\u65b9\u6cd5"},"content":{"rendered":"

<\/p>\n

\u5728 React \u4e2d\u5982\u4f55\u4f7f\u7528 Portals \u8fdb\u884c DOM \u6302\u8f7d\uff1f<\/h1>\n

React \u662f\u4e00\u500b\u7528\u65bc\u69cb\u5efa\u7528\u6236\u754c\u9762\u7684 JavaScript \u5eab\uff0c\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u8f15\u9b06\u5730\u69cb\u5efa\u9ad8\u6027\u80fd\u7684\u7db2\u9801\u61c9\u7528\u7a0b\u5e8f\u3002React \u63d0\u4f9b\u4e86\u4e00\u7a2e\u53eb\u505a Portals \u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5c07 DOM \u6302\u8f7d\u5230\u4efb\u4f55\u4f4d\u7f6e\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39\u5982\u4f55\u5728 React \u4e2d\u4f7f\u7528 Portals \u8fdb\u884c DOM \u6302\u8f7d\u3002<\/p>\n

\u4ec0\u9ebc\u662f Portals\uff1f<\/h2>\n

Portals \u662f React \u4e2d\u7684\u4e00\u7a2e\u529f\u80fd\uff0c\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5c07 DOM \u6302\u8f7d\u5230\u4efb\u4f55\u4f4d\u7f6e\u3002\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5728\u4e0d\u540c\u7684\u7db2\u9801\u5143\u7d20\u4e4b\u9593\u8f15\u9b06\u5730\u50b3\u905e\u8cc7\u6599\uff0c\u4e26\u4e14\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5728\u4e0d\u540c\u7684\u7db2\u9801\u5143\u7d20\u4e4b\u9593\u8f15\u9b06\u5730\u6e32\u67d3\u5167\u5bb9\u3002<\/p>\n

\u5982\u4f55\u5728 React \u4e2d\u4f7f\u7528 Portals\uff1f<\/h2>\n

\u4f7f\u7528 Portals \u5728 React \u4e2d\u6302\u8f7d DOM \u662f\u975e\u5e38\u7c21\u55ae\u7684\uff0c\u53ea\u9700\u8981\u4f7f\u7528 ReactDOM.createPortal() \u65b9\u6cd5\u5373\u53ef\u3002ReactDOM.createPortal() \u65b9\u6cd5\u63a5\u53d7\u5169\u500b\u53c3\u6578\uff0c\u7b2c\u4e00\u500b\u53c3\u6578\u662f\u8981\u6302\u8f7d\u7684 DOM \u5143\u7d20\uff0c\u7b2c\u4e8c\u500b\u53c3\u6578\u662f\u8981\u6302\u8f7d\u7684\u4f4d\u7f6e\u3002<\/p>\n

\nReactDOM.createPortal(\n  element,\n  container\n);\n<\/pre>\n
\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u60f3\u5c07\u4e00\u500b<\/p>\n
<<\/p>\n
div> \u5143\u7d20\u6302\u8f7d\u5230  \u5143\u7d20\u4e2d\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\uff1a<\/p>\n
\nReactDOM.createPortal(\n  
Hello World!<\/div>,\n  document.body\n);\n<\/pre>\n
<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728 React \u4e2d\u4f7f\u7528 Portals \u8fdb\u884c DOM \u6302\u8f7d\u662f\u975e\u5e38\u7c21\u55ae\u7684\uff0c\u53ea\u9700\u8981\u4f7f\u7528 ReactDOM.createPortal() \u65b9\u6cd5\u5373\u53ef\u3002ReactDOM.createPortal() \u65b9\u6cd5\u63a5\u53d7\u5169\u500b\u53c3\u6578\uff0c\u7b2c\u4e00\u500b\u53c3\u6578\u662f\u8981\u6302\u8f7d\u7684 DOM \u5143\u7d20\uff0c\u7b2c\u4e8c\u500b\u53c3\u6578\u662f\u8981\u6302\u8f7d\u7684\u4f4d\u7f6e\u3002\u4f7f\u7528 Portals \u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5728\u4e0d\u540c\u7684\u7db2\u9801\u5143\u7d20\u4e4b\u9593\u8f15\u9b06\u5730\u50b3\u905e\u8cc7\u6599\uff0c\u4e26\u4e14\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5728\u4e0d\u540c\u7684\u7db2\u9801\u5143\u7d20\u4e4b\u9593\u8f15\u9b06\u5730\u6e32\u67d3\u5167\u5bb9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39React\u4e2dPortals\u7684DOM\u6302\u8f7d\u65b9\u6cd5\uff0c\u8b93\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u8f15\u9b06\u5730\u5c07\u61c9\u7528\u7a0b\u5e8f\u7684\u5143\u7d20\u6302\u8f7d\u5230DOM\u4e2d\uff0c\u4ee5\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u53ef\u7528\u6027\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[184,183],"tags":[182,181],"class_list":["post-5957","post","type-post","status-publish","format-standard","hentry","category-react","category-react-js","tag-react","tag-react-js"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1y5","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5957","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=5957"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5957\/revisions"}],"predecessor-version":[{"id":5958,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5957\/revisions\/5958"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=5957"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=5957"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=5957"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}