{"id":490,"date":"2022-02-21T23:09:30","date_gmt":"2022-02-21T14:09:30","guid":{"rendered":"https:\/\/engineering.webstudio168.jp\/?p=490"},"modified":"2022-03-18T11:35:41","modified_gmt":"2022-03-18T02:35:41","slug":"dart-dollar-flutter","status":"publish","type":"post","link":"https:\/\/engineering.webstudio168.jp\/blog\/dart-dollar-flutter\/","title":{"rendered":"Dart\u8a00\u8a9e\u3067\u306e\u300c$\u300d\u30c9\u30eb\u30de\u30fc\u30af\u306e\u6271\u3044\u65b9\u3010Flutter\u3011"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u76ee\u6b21<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/engineering.webstudio168.jp\/blog\/dart-dollar-flutter\/#%E3%80%8C%E3%80%8D%E3%81%AF%E6%96%87%E5%AD%97%E5%88%97%E3%81%AE%E4%B8%AD%E3%81%A7%E5%A4%89%E6%95%B0%E3%82%92%E5%8F%82%E7%85%A7%E3%81%95%E3%81%9B%E3%82%8B\" >\u300c$\u300d\u306f\u6587\u5b57\u5217\u306e\u4e2d\u3067\u5909\u6570\u3092\u53c2\u7167\u3055\u305b\u308b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/engineering.webstudio168.jp\/blog\/dart-dollar-flutter\/#%E6%96%87%E5%AD%97%E5%88%97%E5%86%85%E3%81%A7%E5%A4%89%E6%95%B0%E3%81%A7%E3%81%AF%E3%81%AA%E3%81%8F%E3%80%8C%E3%80%8D%E3%83%9E%E3%83%BC%E3%82%AF%E3%82%92%E8%A1%A8%E7%A4%BA%E3%81%97%E3%81%9F%E3%81%84%E5%A0%B4%E5%90%88\" >\u6587\u5b57\u5217\u5185\u3067\u5909\u6570\u3067\u306f\u306a\u304f\u300c$\u300d\u30de\u30fc\u30af\u3092\u8868\u793a\u3057\u305f\u3044\u5834\u5408<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/engineering.webstudio168.jp\/blog\/dart-dollar-flutter\/#%E3%81%BE%E3%81%A8%E3%82%81\" >\u307e\u3068\u3081<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">Flutter\u306e\u521d\u671f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30bd\u30fc\u30b9\u3092\u898b\u3066\u3044\u305f\u3068\u3053\u308d\u300c$\uff08\u30c9\u30eb\u30fb\u30c0\u30e9\u30fc\uff09\u300d\u30de\u30fc\u30af\u304c\u4e88\u60f3\u5916\u306e\u4f4d\u7f6e\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u30d7\u30ed\u30b0\u30e9\u30e0\u5185\u306b$\u304c\u3042\u308b\u5834\u6240\u306f\u3001_MyHomePageState\u30af\u30e9\u30b9\uff08State\u30af\u30e9\u30b9\u30fb\u72b6\u614b\u30af\u30e9\u30b9\uff09\u5185\u306ebuild\u30e1\u30bd\u30c3\u30c9\u306b\u3042\u308b\u4e0b\u8a18\u306b\u306a\u308a\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-dart\" data-file=\"main.dart\" data-lang=\"Dart\"><code>Text(\n  &#39;$_counter&#39;,\n  style: Theme.of(context).textTheme.headline4,\n),<\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e<code>'$_counter'<\/code>\u306f\u6587\u5b57\u5217\u30ea\u30c6\u30e9\u30eb\u5185\u3067\u5909\u6570\u3092\u7528\u3044\u308b\u5834\u5408\u306b\u300c$\u300d\u3092\u982d\u306b\u4ed8\u3051\u3066\u5909\u6570\u3092\u547c\u3073\u51fa\u3059\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u4f8b\u3067\u8a00\u3046\u3068<code>_counter<\/code>\u3068\u3044\u3046\u5909\u6570\u3092\u6587\u5b57\u5217\u5185\u3067\u4f7f\u7528\u3059\u308b\u305f\u3081\u306b\u5148\u982d\u306b\u300c$\u300d\u3092\u4ed8\u3051\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u306f\u6587\u5b57\u5217\u306e\u4e2d\u3067\u5909\u6570\u3092\u53c2\u7167\u3055\u305b\u308b\"><span class=\"ez-toc-section\" id=\"%E3%80%8C%E3%80%8D%E3%81%AF%E6%96%87%E5%AD%97%E5%88%97%E3%81%AE%E4%B8%AD%E3%81%A7%E5%A4%89%E6%95%B0%E3%82%92%E5%8F%82%E7%85%A7%E3%81%95%E3%81%9B%E3%82%8B\"><\/span>\u300c$\u300d\u306f\u6587\u5b57\u5217\u306e\u4e2d\u3067\u5909\u6570\u3092\u53c2\u7167\u3055\u305b\u308b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Dart\u8a00\u8a9e\u3067\u306fprint\u30e1\u30bd\u30c3\u30c9\u3082\u4f7f\u3048\u307e\u3059\u306e\u3067\u4f8b\u3048\u3070\u3001<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-dart\" data-file=\"\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\" data-lang=\"Dart\"><code>int god = 8192;\nprint(&#39;a = $god&#39;);<\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3068\u3044\u3046\u30b3\u30fc\u30c9\u304c\u3042\u3063\u305f\u5834\u5408\u3001\u300ca = 8192\u300d\u3068\u51fa\u529b\u3055\u308c\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u300c$\u300d\u306f\u3042\u304f\u307e\u3067<strong>\u6587\u5b57\u5217\u5185\u3067<\/strong>\u5909\u6570\u306e\u5024\u3092\u66f8\u304d\u51fa\u3057\u305f\u308a\u3001\u8aad\u307f\u8fbc\u3093\u3060\u308a\u3055\u305b\u305f\u3044\u6642\u306b\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u6587\u5b57\u5217\u5185\u3067\u5909\u6570\u3067\u306f\u306a\u304f-\u30de\u30fc\u30af\u3092\u8868\u793a\u3057\u305f\u3044\u5834\u5408\"><span class=\"ez-toc-section\" id=\"%E6%96%87%E5%AD%97%E5%88%97%E5%86%85%E3%81%A7%E5%A4%89%E6%95%B0%E3%81%A7%E3%81%AF%E3%81%AA%E3%81%8F%E3%80%8C%E3%80%8D%E3%83%9E%E3%83%BC%E3%82%AF%E3%82%92%E8%A1%A8%E7%A4%BA%E3%81%97%E3%81%9F%E3%81%84%E5%A0%B4%E5%90%88\"><\/span>\u6587\u5b57\u5217\u5185\u3067\u5909\u6570\u3067\u306f\u306a\u304f\u300c$\u300d\u30de\u30fc\u30af\u3092\u8868\u793a\u3057\u305f\u3044\u5834\u5408<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u3067\u3075\u3068\u7591\u554f\u306b\u601d\u308f\u308c\u308b\u3068\u601d\u3044\u307e\u3059\u304c\u3001\u300c$\u300d\u3092\u5909\u6570\u7684\u306a\u5229\u7528\u3067\u306f\u306a\u304f\u3001\u5358\u7d14\u306b\u6587\u5b57\u306e\u300c$\u300d\u3068\u3057\u3066\u51fa\u529b\u3057\u305f\u3044\u6642\u306f\u3069\u3046\u3057\u305f\u3089\u3088\u3044\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b54\u3048\u306f\u3068\u3066\u3082\u7c21\u5358\u3067\u300c$\u300d\u306e\u524d\u306b\u300c\\\uff08\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5\uff09\u300d\u3092\u4ed8\u3051\u3066\u3001\u30a8\u30b9\u30b1\u30fc\u30d7\u3057\u3066\u3042\u3052\u308b\u3060\u3051\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-dart\" data-file=\"\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\" data-lang=\"Dart\"><code>int god = 8192;\nprint(&#39;a = \\$god&#39;);<\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u306e\u3088\u3046\u306b\u300c\\$\u300d\u3068\u3057\u3066\u8a18\u8ff0\u3059\u308c\u3070\u300ca = $god\u300d\u3068\u51fa\u529b\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<br>\u30a8\u30b9\u30b1\u30fc\u30d7\u6587\u5b57\u306f\u4ed6\u306b\u3082\u3042\u308a\u305d\u3046\u3067\u3059\u306d\u3002\u3053\u3053\u3067\u306f\u3068\u308a\u3042\u3048\u305a\u300c$\u300d\u306b\u3064\u3044\u3066\u3060\u3051\u660e\u8a18\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u307e\u3068\u3081\"><span class=\"ez-toc-section\" id=\"%E3%81%BE%E3%81%A8%E3%82%81\"><\/span>\u307e\u3068\u3081<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Dart\u8a00\u8a9e\u3067\u306e\u300c$\u300d\u306f\u3001<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u6587\u5b57\u5217\u5185\u3067\u5909\u6570\u3092\u547c\u3073\u51fa\u3059<\/li><li>\u300c\\$\u300d\u3068\u3059\u308b\u3068$\u306f\u30a8\u30b9\u30b1\u30fc\u30d7\u51fa\u6765\u308b<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3068\u3044\u3046\u3053\u3068\u3092\u62bc\u3048\u3066\u304a\u3051\u3070\u5927\u4e08\u592b\u3067\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Flutter\u306e\u521d\u671f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30bd\u30fc\u30b9\u3092\u898b\u3066\u3044\u305f\u3068\u3053\u308d\u300c$\uff08\u30c9\u30eb\u30fb\u30c0\u30e9\u30fc\uff09\u300d\u30de\u30fc\u30af\u304c\u4e88\u60f3\u5916\u306e\u4f4d\u7f6e\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u30d7\u30ed\u30b0\u30e9\u30e0\u5185\u306b$\u304c\u3042\u308b\u5834\u6240\u306f\u3001_MyHomePageState\u30af\u30e9\u30b9\uff08State\u30af\u30e9\u30b9\u30fb\u72b6\u614b\u30af\u30e9\u30b9\uff09 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":495,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45],"tags":[47,36,48],"class_list":["post-490","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-flutter","tag-dart","tag-flutter","tag-48"],"_links":{"self":[{"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/posts\/490","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/comments?post=490"}],"version-history":[{"count":4,"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/posts\/490\/revisions"}],"predecessor-version":[{"id":494,"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/posts\/490\/revisions\/494"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/media\/495"}],"wp:attachment":[{"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/media?parent=490"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/categories?post=490"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/engineering.webstudio168.jp\/blog\/wp-json\/wp\/v2\/tags?post=490"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}