{"id":4160,"date":"2023-10-19T23:52:02","date_gmt":"2023-10-19T14:52:02","guid":{"rendered":"https:\/\/dennie.tokyo\/it\/?p=4160"},"modified":"2025-07-10T19:22:01","modified_gmt":"2025-07-10T10:22:01","slug":"%e3%80%90go%e3%80%91%e3%82%bb%e3%83%b3%e3%83%81%e3%83%8d%e3%83%ab%e3%82%a8%e3%83%a9%e3%83%bc","status":"publish","type":"post","link":"https:\/\/dennie.tokyo\/it\/?p=4160","title":{"rendered":"\u3010Go\u3011\u30bb\u30f3\u30c1\u30cd\u30eb\u30a8\u30e9\u30fc"},"content":{"rendered":"\n<p>\u5f8c\u65e5\u8a18\u8f09\u3059\u308b\u3002<\/p>\n\n\n\n<!--more-->\n\n\n\n<h1 class=\"wp-block-heading\">\u69cb\u6210<\/h1>\n\n\n\n<p>\u30e1\u30a4\u30f3\u304b\u3089\u4ed6\u306e\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u95a2\u6570\u3092\u547c\u3073\u51fa\u3057\u30a8\u30e9\u30fc\u3092\u53d7\u3051\u53d6\u308b\u3002\u53d7\u3051\u53d6\u3063\u305f\u30a8\u30e9\u30fc\u304c\u3001\u5b9a\u7fa9\u3055\u308c\u305f\u30a8\u30e9\u30fc\u3068\u540c\u3058\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30d1\u30c3\u30b1\u30fc\u30b8<\/h2>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\" data-file=\"other.go\"><code>package other\n\nimport &quot;errors&quot;\n\nvar ErrSample = errors.New(&quot;sample&quot;)\n\nfunc ReturnErrSample() error {\n\treturn ErrSample\n}\n<\/code><\/pre><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u30e1\u30a4\u30f3<\/h2>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\" data-file=\"main.go\"><code>package main\n\nimport (\n\t&quot;errors&quot;\n\t&quot;fmt&quot;\n\n\t&quot;example.com\/hello\/other&quot;\n)\n\nfunc main() {\n\n\te := other.ReturnErrSample()\n\n\tif errors.Is(e, other.ErrSample) {\n\t\tfmt.Println(&quot;OK&quot;)\n\t} else {\n\t\tfmt.Println(&quot;NG&quot;)\n\t}\n\n}\n<\/code><\/pre><\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f8c\u65e5\u8a18\u8f09\u3059\u308b\u3002<\/p>\n","protected":false},"author":1,"featured_media":5,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[],"class_list":["post-4160","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-go"],"_links":{"self":[{"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=\/wp\/v2\/posts\/4160","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4160"}],"version-history":[{"count":1,"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=\/wp\/v2\/posts\/4160\/revisions"}],"predecessor-version":[{"id":4161,"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=\/wp\/v2\/posts\/4160\/revisions\/4161"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=\/wp\/v2\/media\/5"}],"wp:attachment":[{"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4160"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4160"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}