{"id":483,"date":"2022-06-27T15:35:50","date_gmt":"2022-06-27T06:35:50","guid":{"rendered":"https:\/\/sumomo.ohwaki.jp\/wordpress\/?p=483"},"modified":"2022-06-30T05:59:42","modified_gmt":"2022-06-29T20:59:42","slug":"javascript-promise%e3%81%a8async-await","status":"publish","type":"post","link":"https:\/\/sumomo.ohwaki.jp\/wordpress\/?p=483","title":{"rendered":"JavaScript promise\u3068async await"},"content":{"rendered":"\n<p>\u6700\u8fd1\u3001\u6b86\u3069JavaScript\u306a\u3093\u305e\u4f7f\u3063\u3066\u3044\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u77e5\u3063\u305f\u3068\u304d\u306f\u3061\u3087\u3063\u3068\u9a5a\u304dw<\/p>\n\n\n\n<p>\u307e\u3041\u3001\u6b86\u3069\u306e\u4eba\u306f\u77e5\u3063\u3066\u3044\u308b\u3068\u601d\u3046\u304c\u3001JavaScript\u3067promise\u3092\u4f7f\u3063\u305f\u30e9\u30a4\u30d6\u30e9\u30ea\u7b49\u304c\u3042\u3063\u305f\u5834\u5408\u3001\u4ee5\u524d\u3060\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u611f\u3058\u3067\u51e6\u7406\u3092\u66f8\u3044\u3066\u3044\u305f\u3068\u601d\u3046\u304c\u3001\u51e6\u7406\u5185\u3067\u307e\u305f\u3001promise\u3092\u4f7f\u3063\u305f\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u547c\u3073\u51fa\u3059\u5834\u5408\u306f\u30cd\u30b9\u30c8\u304c\u6df1\u304f\u306a\u3063\u3066\u898b\u3065\u3089\u3044\u3057\u3001\u7d50\u69cb\u9762\u5012\u3060\u3088\u306d\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-js\" data-file=\"promise\u901a\u5e38\u4f7f\u7528\" data-lang=\"JavaScript\"><code>\/\/ promise\u3092\u4f7f\u7528\u3057\u305f\u4e00\u822c\u7684\u306a\u4f8b\nfunction xxx(prm) {\n\t\/\/ hoge\u95a2\u6570\u306fpromise\u3092\u8fd4\u3059\n\t\/\/ moge\u95a2\u6570\u3082promise\u3092\u8fd4\u3059\n\thoge(prm)\n\t\t.then( e =&gt; {\n\t\t\t\/\/ hoge\u6b63\u5e38\u5b8c\u4e86\u6642\u6642\u306e\u51e6\u7406\n\t\t\tmoge(e).then( e =&gt; {\n\t\t\t\t\u30fb\u30fb\u30fb\/\/ moge\u6b63\u5e38\u5b8c\u4e86\u6642\u306e\u51e6\u7406\n\t\t\t}).catch(\n\t\t\t\terr =&gt; {\n\t\t\t\t\u30fb\u30fb\u30fb\t\/\/ moge\u7570\u5e38\u5b8c\u4e86\u6642\u306e\u51e6\u7406\n\t\t\t});\n\t\t}).catch( \n\t\t\terr =&gt; {\n\t\t\t\u30fb\u30fb\u30fb\t\/\/ hoge\u7570\u5e38\u5b8c\u4e86\u6642\u306e\u51e6\u7406\n\t\t});\n}<\/code><\/pre><\/div>\n\n\n\n<p>\u6628\u4eca\u306eJavaScript\u3067\u306f\u3053\u308c\u3092C#\u3068\u540c\u69d8\u306basync\/await\u3092\u4f7f\u3063\u305f\u5f62\u3067\u8a18\u8ff0\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3068\u306a\u3063\u305f\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u611f\u3058\u3067\u3059\u306a\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-js\" data-file=\"async\/await\u4f7f\u7528\" data-lang=\"JavaScript\"><code>\/\/ async\/await\u7248\nasync function xxx(prm) {\n\ttry {\n\t\tvar e = await hoge(prm);\n\t\tvar x = await moge(e);\n\t\t\u30fb\u30fb\u30fb\n\t} catch(err) {\t\/\/ \u3069\u3053\u304b\u306e\u51e6\u7406\u304c\u5931\u6557\u3059\u308b\u3068\u3001\u4f8b\u5916\u304c\u30b9\u30ed\u30fc\u3055\u308c\u308b\n\t\t\/\/ \u4f8b\u5916\u51e6\u7406\n\t}\n}<\/code><\/pre><\/div>\n\n\n\n<p>C#\u307e\u3093\u307e\u3058\u3083\u3093\u30fb\u30fb\u30fb<\/p>\n\n\n\n<p>\u3053\u308c\u306a\u3089\u3001node.js\u3068\u304b\u3067\u958b\u767a\u3057\u3066\u3082\u5c11\u3057\u306f\u697d\u304b\u306a\u3002\u306a\u3069\u3068\u601d\u3063\u3066\u3044\u308b\u4eca\u65e5\u3053\u306e\u9803\u30fb\u30fb\u30fb<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u3001\u6b86\u3069JavaScript\u306a\u3093\u305e\u4f7f\u3063\u3066\u3044\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u77e5\u3063\u305f\u3068\u304d\u306f\u3061\u3087\u3063\u3068\u9a5a &hellip; <a href=\"https:\/\/sumomo.ohwaki.jp\/wordpress\/?p=483\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24,23,4],"tags":[],"class_list":["post-483","post","type-post","status-publish","format-standard","hentry","category-javascript","category-web","category-4"],"_links":{"self":[{"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/483","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=483"}],"version-history":[{"count":3,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/483\/revisions"}],"predecessor-version":[{"id":494,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/483\/revisions\/494"}],"wp:attachment":[{"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=483"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}