{"id":5685,"date":"2023-01-06T14:36:37","date_gmt":"2023-01-06T06:36:37","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5685"},"modified":"2023-01-06T14:36:37","modified_gmt":"2023-01-06T06:36:37","slug":"%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8react-js%e7%9a%84unionlist%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/react-js\/%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8react-js%e7%9a%84unionlist%e5%8a%9f%e8%83%bd\/","title":{"rendered":"\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528React.JS\u7684UnionList\u529f\u80fd"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"React, React List, Union\"><\/p>\n<h1>\u4f7f\u7528 React.JS \u5be6\u73fe React List \u7684\u5e76\u96c6(union)<\/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\u51fa\u9ad8\u6027\u80fd\u7684\u7db2\u9801\u61c9\u7528\u7a0b\u5e8f\u3002\u5728 React.JS \u4e2d\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528 React List \u4f86\u69cb\u5efa\u4e00\u500b\u5217\u8868\uff0c\u4e26\u5c0d\u5176\u9032\u884c\u64cd\u4f5c\uff0c\u4f8b\u5982\u6392\u5e8f\u3001\u641c\u7d22\u3001\u904e\u6ffe\u7b49\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528 React.JS \u5be6\u73fe React List \u7684\u5e76\u96c6(union)\u3002<\/p>\n<p><!--more--><\/p>\n<h2>\u4ec0\u9ebc\u662f React List \u7684\u5e76\u96c6(union)<\/h2>\n<p>React List \u7684\u5e76\u96c6(union)\u662f\u6307\u5c07\u5169\u500b React List \u5408\u4f75\u70ba\u4e00\u500b\u65b0\u7684 React List\uff0c\u65b0\u7684 React List \u5305\u542b\u4e86\u5169\u500b React List \u4e2d\u7684\u6240\u6709\u5143\u7d20\uff0c\u4f46\u4e0d\u6703\u6709\u91cd\u8907\u7684\u5143\u7d20\u3002<\/p>\n<h2>\u5982\u4f55\u4f7f\u7528 React.JS \u5be6\u73fe React List \u7684\u5e76\u96c6(union)<\/h2>\n<p>\u8981\u5be6\u73fe React List \u7684\u5e76\u96c6(union)\uff0c\u9996\u5148\u9700\u8981\u5b9a\u7fa9\u5169\u500b React List\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre class=\"brush: javascript\">\nconst list1 = [1, 2, 3, 4];\nconst list2 = [3, 4, 5, 6];\n<\/pre>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 JavaScript \u7684 <code>Array.prototype.concat()<\/code> \u65b9\u6cd5\u5c07\u5169\u500b React List \u5408\u4f75\u70ba\u4e00\u500b\u65b0\u7684 React List\uff1a<\/p>\n<pre class=\"brush: javascript\">\nconst unionList = list1.concat(list2);\n<\/pre>\n<p>\u6700\u5f8c\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 JavaScript \u7684 <code>Array.prototype.filter()<\/code> \u65b9\u6cd5\u5c07\u65b0\u7684 React List \u4e2d\u7684\u91cd\u8907\u5143\u7d20\u904e\u6ffe\u6389\uff1a<\/p>\n<pre class=\"brush: javascript\">\nconst unionList = list1.concat(list2).filter((item, index, array) => {\n  return array.indexOf(item) === index;\n});\n<\/pre>\n<p>\u6700\u7d42\uff0c\u6211\u5011\u5c31\u53ef\u4ee5\u5f97\u5230\u4e00\u500b\u65b0\u7684 React List\uff0c\u5b83\u5305\u542b\u4e86\u5169\u500b React List \u4e2d\u7684\u6240\u6709\u5143\u7d20\uff0c\u4f46\u4e0d\u6703\u6709\u91cd\u8907\u7684\u5143\u7d20\uff1a<\/p>\n<pre class=\"brush: javascript\">\nconsole.log(unionList); \/\/ [1, 2, 3, 4, 5, 6]\n<\/pre>\n<h2>\u7e3d\u7d50<\/h2>\n<p>\u672c\u6587\u4ecb\u7d39\u4e86\u5982\u4f55\u4f7f\u7528 React.JS \u5be6\u73fe React List \u7684\u5e76\u96c6(union)\u3002\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u5b9a\u7fa9\u5169\u500b React List\uff0c\u7136\u5f8c\u4f7f\u7528 JavaScript \u7684 <code>Array.prototype.concat()<\/code> \u65b9\u6cd5\u5c07\u5169\u500b React List \u5408\u4f75\u70ba\u4e00\u500b\u65b0\u7684 React List\uff0c\u6700\u5f8c\uff0c\u4f7f\u7528 JavaScript \u7684 <code>Array.prototype.filter()<\/code> \u65b9\u6cd5\u5c07\u65b0\u7684 React List \u4e2d\u7684\u91cd\u8907\u5143\u7d20\u904e\u6ffe\u6389\uff0c\u5c31\u53ef\u4ee5\u5f97\u5230\u4e00\u500b\u65b0\u7684 React List\uff0c\u5b83\u5305\u542b\u4e86\u5169\u500b React List \u4e2d\u7684\u6240\u6709\u5143\u7d20\uff0c\u4f46\u4e0d\u6703\u6709\u91cd\u8907\u7684\u5143\u7d20\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528React.JS\u7684UnionList\u529f\u80fd\uff0c\u8a73\u7d30\u89e3\u91cbUnionList\u7684\u6982\u5ff5\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u4f86\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u4f7f\u7528UnionList\u529f\u80fd\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-5685","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\/pcFK27-1tH","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5685","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=5685"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5685\/revisions"}],"predecessor-version":[{"id":5686,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5685\/revisions\/5686"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=5685"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=5685"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=5685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}