{"id":4520,"date":"2025-01-13T10:47:51","date_gmt":"2025-01-13T01:47:51","guid":{"rendered":"https:\/\/www.wsmeguro.jp\/wp\/?p=4520"},"modified":"2025-01-13T10:49:09","modified_gmt":"2025-01-13T01:49:09","slug":"dart%e3%81%ae%e5%8b%89%e5%bc%b76%e2%88%922%ef%bc%9a%e6%9d%a1%e4%bb%b6%e5%88%86%e5%b2%90%ef%bc%88if-case%e3%81%a8switch%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsmeguro.jp\/wp\/?p=4520","title":{"rendered":"Dart\u306e\u52c9\u5f376\u22122\uff1a\u6761\u4ef6\u5206\u5c90\uff08if-case\u3068switch\uff09"},"content":{"rendered":"

\u6761\u4ef6\u5206\u5c90\u306e\uff12\u3068\u3057\u3066if-case\u3068switch\u3092\u6271\u3044\u307e\u3059\u3002\u30b3\u30fc\u30c9\u3092\u898b\u305f\u65b9\u304c\u65e9\u3044\u306e\u3067\u4e0b\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n

    \n
  1. if-case\n
    \n
    \r\nvoid main() {\r\n  var pair = [2, 5];\r\n  if (pair case [int x, int y]) {\r\n    print('Was coordinate array $x,$y'); \/\/\u30a8\u30e9\u30fc\u306b\u306a\u3089\u305a\u3053\u3061\u3089\u304c\u8868\u793a\r\n  } else {\r\n    throw FormatException('Invalid coordinates.');\r\n  }\r\n}\r\nvoid main() {\r\n  var pair = [2, 5, 1];\r\n  if (pair case [int x, int y]) {\r\n    print('Was coordinate array $x,$y');\r\n  } else {\r\n    throw FormatException('Invalid coordinates.');\u3000\/\/\u30a8\u30e9\u30fc\u3068\u306a\u3063\u3066\u3053\u3061\u3089\u304c\u8868\u793a\r\n  }\r\n}\r\n<\/code><\/pre>\n<\/div>\n
    \u3068\u3044\u3046\u3053\u3068\u3067\u3001\u5909\u6570\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u5224\u5225\u3057\u3066\u304f\u308c\u307e\u3059\u3002\n<\/li>\n
  2. switch\n
    \n
    \r\nvoid main() {\r\n  var color = 'Blue';\r\n  switch (color) {\r\n    case 'Green':\r\n      print(\"\u7dd1\");\r\n      continue yellowCase; \/\/Green\u3067\u306f\u306a\u3044\u5834\u5408\u3001yellowCase\u306b\u98db\u3073\u307e\u3059\u3002\u9055\u3063\u305f\u3089\u623b\u3063\u3066\u304d\u307e\u3059\u3002\r\n\r\n    case 'Blue':\/\/\u51e6\u7406\u3092\u8a18\u8ff0\u3057\u306a\u3044\u3068\u3001\u6b21\u306ecase\u306e\u51e6\u7406\u3092\u884c\u3044\u307e\u3059\u3002\r\n    case 'Black':\r\n      print(\"\u9752\u304b\u9ed2\");\r\n\r\n    case 'Red':\r\n      print(\"\u8d64\");\r\n\r\n    yellowCase:\r\n    case 'Yellow':\r\n      print(\"\u9ec4\");\r\n      \r\n    default:\r\n      print(\"\u9055\u3046\u8272\");\r\n  }\r\n}\r\n<\/code><\/pre>\n<\/div>\n
    color\u306b\u3044\u308d\u3093\u306a\u5024\u3092\u5165\u308c\u3066\u307f\u3066\u8a66\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u6761\u4ef6\u5206\u5c90\u306e\uff12\u3068\u3057\u3066if-case\u3068switch\u3092\u6271\u3044\u307e\u3059\u3002\u30b3\u30fc\u30c9\u3092\u898b\u305f\u65b9\u304c\u65e9\u3044\u306e\u3067\u4e0b\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002 if-case void main() { var pair = [2, 5]; if (pair case [int…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[595,505],"tags":[601,597,618,619],"class_list":["post-4520","post","type-post","status-publish","format-standard","hentry","category-dart2","category-programming","tag-dart","tag-dart2","tag-dartpad"],"_links":{"self":[{"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=\/wp\/v2\/posts\/4520","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4520"}],"version-history":[{"count":3,"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=\/wp\/v2\/posts\/4520\/revisions"}],"predecessor-version":[{"id":4523,"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=\/wp\/v2\/posts\/4520\/revisions\/4523"}],"wp:attachment":[{"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4520"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4520"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4520"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}