{"id":3000,"date":"2018-06-12T01:03:27","date_gmt":"2018-06-11T16:03:27","guid":{"rendered":"http:\/\/taitan916.info\/blog\/?p=3000"},"modified":"2024-02-20T19:00:44","modified_gmt":"2024-02-20T10:00:44","slug":"post-3000","status":"publish","type":"post","link":"https:\/\/taitan916.info\/blog\/archives\/3000","title":{"rendered":"JavaScript\u3067\u6587\u5b57\u5217\u304b\u3089\u6570\u5024(\u7279\u306b\u5c0f\u6570)\u3078\u5909\u63db\u6642\u306e\u6ce8\u610f\u70b9"},"content":{"rendered":"<p>JavaScript\u3067\u6587\u5b57\u5217\u304b\u3089\u6570\u5024\u3078\u5909\u63db\u6642\u306b\u60f3\u5b9a\u3057\u3066\u3044\u305f\u7d50\u679c\u3068\u7570\u306a\u308b\u3053\u3068\u304c\u3042\u3063\u305f\u3002\u5177\u4f53\u7684\u306b\u306f\u5c0f\u6570\u304c\u5165\u3063\u305f\u6642\u306b\u5c0f\u6570\u70b9\u4ee5\u4e0b\u304c\u52dd\u624b\u306b\u4e38\u3081\u3089\u308c\u305f\u308a\u3068\u3044\u3063\u305f\u5177\u5408\u3002\u4ee5\u4e0b\u306b\u5bfe\u5fdc\u65b9\u6cd5\u3092\u30e1\u30e2\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>\u5bfe\u5fdc\u65b9\u6cd5<\/h2>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">&lt;script&gt;\r\nvar num1 = '1';\r\nvar num2 = '0.001';\r\nvar num3 = '1.001';\r\n\r\nconsole.log(num1); \/\/'1'\r\nconsole.log(num2); \/\/'0.001'\r\nconsole.log(num3); \/\/'1.001'\r\n\r\n\/\/parseInt\u3067\u6587\u5b57\u5217\u2192\u6570\u5024\u306b\u5909\u63db\r\nconsole.log(parseInt(num1)); \/\/1\r\nconsole.log(parseInt(num2)); \/\/0\r\nconsole.log(parseInt(num3)); \/\/1\r\n\r\n\/\/parseFloat\u3067\u6587\u5b57\u5217\u2192\u6570\u5024\u306b\u5909\u63db\r\nconsole.log(parseFloat(num1)); \/\/1\r\nconsole.log(parseFloat(num2)); \/\/0.001\r\nconsole.log(parseFloat(num3)); \/\/1.001\r\n&lt;\/script&gt;<\/pre>\n<p>\u5c11\u6570\u304c\u5165\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u5834\u5408\u306f<a href=\"https:\/\/developer.mozilla.org\/ja\/docs\/Web\/JavaScript\/Reference\/Global_Objects\/parseFloat\" target=\"_blank\" rel=\"noopener\">perseFloat<\/a>\u3092\u4f7f\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>JavaScript\u3067\u6587\u5b57\u5217\u304b\u3089\u6570\u5024\u3078\u5909\u63db\u6642\u306b\u60f3\u5b9a\u3057\u3066\u3044\u305f\u7d50\u679c\u3068\u7570\u306a\u308b\u3053\u3068\u304c\u3042\u3063 ... <\/p>\n","protected":false},"author":1,"featured_media":1067,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-3000","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-javascript"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/posts\/3000","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/comments?post=3000"}],"version-history":[{"count":2,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/posts\/3000\/revisions"}],"predecessor-version":[{"id":4808,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/posts\/3000\/revisions\/4808"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/media\/1067"}],"wp:attachment":[{"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/media?parent=3000"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/categories?post=3000"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/tags?post=3000"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}