{"id":9914,"date":"2019-03-15T07:00:01","date_gmt":"2019-03-14T22:00:01","guid":{"rendered":"https:\/\/www.itblog.jp\/?p=9914"},"modified":"2019-03-15T07:00:01","modified_gmt":"2019-03-14T22:00:01","slug":"javascript%e3%81%ae%e3%82%af%e3%83%ad%e3%83%bc%e3%82%b8%e3%83%a3%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6%e8%a7%a3%e8%aa%ac","status":"publish","type":"post","link":"https:\/\/www.itblog.jp\/?p=9914","title":{"rendered":"Javascript\u306e\u30af\u30ed\u30fc\u30b8\u30e3\u306b\u3064\u3044\u3066\u89e3\u8aac"},"content":{"rendered":"

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Javascirpt\u306e\u30af\u30ed\u30fc\u30b8\u30e3\u3068\u306f\u4f55\u304b<\/h2>\n

Javascript\u306e\u30af\u30ed\u30fc\u30b8\u30e3\u3068\u306f\u4f55\u304b\u3002<\/p>\n

\u79c1\u306e\u7406\u89e3\u3067\u306f<\/p>\n

\u95a2\u6570\u306e\u4e2d\u3067\u95a2\u6570\u3092\u5b9a\u7fa9\u3057\u305f\u3082\u306e<\/p>\n

\u3068\u3044\u3046\u7406\u89e3\u3067\u3059\u3002
\n(\u3042\u304f\u307e\u3067\u79c1\u306e\u7406\u89e3\u3067\u3059)<\/p>\n

\u307e\u305a\u3001\u57fa\u672c\u7684\u306a\u3068\u3053\u308d\u3067<\/p>\n

\u30fb\u3000\u95a2\u6570\u3092\u5b9a\u7fa9\u3059\u308b\u3068\u3001\u95a2\u6570\u5185\u3067\u5b9a\u7fa9\u3057\u305f\u5909\u6570\u306f\u95a2\u6570\u5916\u90e8\u304b\u3089\u53c2\u7167\u3067\u304d\u306a\u3044<\/p>\n

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\u4f8b\u3048\u3070<\/p>\n

\r\nfunction func() {\r\n  var value = 1;\r\n  console.log(value);\r\n}\r\nfunc(); \/\/ 1\r\nconsole.log(value); \/\/ undefined\r\n<\/pre>\n
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\n\u53c2\u7167\u3067\u304d\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n
\r\nfunction func() {\r\n  var value = 1;\r\n\r\n  function innerFunc() {\r\n    value++;\r\n  }\r\n  innerFunc();\r\n  console.log(value); \/\/ 2\r\n}\r\nfunc();\r\n<\/pre>\n
\u4e0a\u8a18\u306e\u3088\u3046\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5834\u5408\u3001\u95a2\u6570\u306e\u5185\u90e8\u3067innerFunc\u3068\u3044\u3046\u95a2\u6570\u3092\u5b9a\u7fa9\u3057\u3066\u95a2\u6570\u5185\u3067\u5b9f\u884c\u3057\u3066\u3044\u307e\u3059\u3002
\n\u3053\u306einnerFUnc\u3092\u30af\u30ed\u30fc\u30b8\u30e3\u3068\u3044\u3044\u307e\u3059\u3002<\/p>\n
innerFunc\u5185\u3067\u306f\u3001\u5916\u5074\u306e\u95a2\u6570\uff08\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\uff09\u3067\u5b9a\u7fa9\u3057\u3066\u3044\u308b
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\n\u66f4\u65b0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u3064\u307e\u308a\u3001javascript\u3067\u306f\u3001\u95a2\u6570\u306e\u4e2d\u3067\u5b9a\u7fa9\u3055\u308c\u305f\u95a2\u6570\u306e\u4ed5\u69d8\u306f\u901a\u5e38\u306e
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\n\u3057\u305f\u308a\u3067\u304d\u308b\u306e\u3067\u3059\u3002<\/p>\n
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