{"id":236,"date":"2021-09-17T15:23:32","date_gmt":"1970-01-01T00:00:00","guid":{"rendered":"http:\/\/swift.tecc0.com\/?p=236"},"modified":"2021-09-17T15:23:32","modified_gmt":"1970-01-01T00:00:00","slug":"post-236","status":"publish","type":"post","link":"https:\/\/swift.tecc0.com\/?p=236","title":{"rendered":"Swift\u3067\u914d\u5217\u306b\u8981\u7d20\u3092\u691c\u7d22(indexOf)\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<h3>Swift\u3067\u914d\u5217\u306b\u6307\u5b9a\u306e\u6587\u5b57\u5217\u8981\u7d20\u304c\u4f55\u756a\u76ee\u306b\u3042\u308b\u304b\u691c\u7d22\u3059\u308b<\/h3>\n<pre class=\"lang:swift decode:true\">let strArray = [\"Apple\", \"Google\", \"Facebook\"]\n\nstrArray.firstIndex(of: \"Google\") \/\/ 1\nstrArray.firstIndex(of: \"Facebook\") \/\/ 2\nstrArray.firstIndex(of: \"Twitter\") \/\/ nil<\/pre>\n<p>\u3053\u3093\u306a\u611f\u3058\u3067 <strong>\u5b58\u5728\u3057\u306a\u3044\u5834\u5408\u306fnil<\/strong> \u304c\u8fd4\u3063\u3066\u304f\u308b\u3088\u3002<\/p>\n<p>\u3061\u306a\u307f\u306b <strong>find<\/strong> \u3067\u306f\u306a\u304f\u3001 <strong>indexOf<\/strong> \u3060\u304b\u3089\u899a\u3048\u3066\u304a\u3053\u3046\u3002<\/p>\n<p><span style=\"color: #ff0000;\">Swift5\u3067\u306findexOf\u3082\u5ec3\u6b62\u3055\u308c\u3066\u3001<strong>firstIndex(of: )<\/strong>\u306b\u306a\u3063\u305f\u3088<\/span>\u3002<\/p>\n<h5>\u5b58\u5728\u3059\u308b\u5834\u5408\u306b\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b\u3063\u3066\u3044\u3046\u5834\u5408\u306f\u3053\u3093\u306a\u611f\u3058<\/h5>\n<pre class=\"lang:swift decode:true  \">let strArray = [\"Apple\", \"Google\", \"Facebook\"]\nif strArray.firstIndex(of: \"Google\") != nil {\n    print(\"OK Google!\")\n}<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Swift\u3067\u914d\u5217\u306b\u6307\u5b9a\u306e\u6587\u5b57\u5217\u8981\u7d20\u304c\u4f55\u756a\u76ee\u306b\u3042\u308b\u304b\u691c\u7d22\u3059\u308b let strArray = [&#8220;Apple&#8221;, &#8220;Google&#8221;, &#8220;Facebook&#8221;] strArray.firstIndex(of: &#8220;Google&#8221;)&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[17],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/swift.tecc0.com\/index.php?rest_route=\/wp\/v2\/posts\/236"}],"collection":[{"href":"https:\/\/swift.tecc0.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swift.tecc0.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swift.tecc0.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/swift.tecc0.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=236"}],"version-history":[{"count":5,"href":"https:\/\/swift.tecc0.com\/index.php?rest_route=\/wp\/v2\/posts\/236\/revisions"}],"predecessor-version":[{"id":761,"href":"https:\/\/swift.tecc0.com\/index.php?rest_route=\/wp\/v2\/posts\/236\/revisions\/761"}],"wp:attachment":[{"href":"https:\/\/swift.tecc0.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=236"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swift.tecc0.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=236"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swift.tecc0.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=236"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}