{"id":437,"date":"2023-02-12T02:10:34","date_gmt":"2022-07-23T11:14:45","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/index.php\/2023\/11\/30\/%e3%83%8e%e3%83%bc%e3%83%89fs-nodejs%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%81%ae%e4%bd%9c%e6%88%90%e3%80%81%e8%aa%ad%e3%81%bf%e8%be%bc%e3%81%bf%e3%80%81%e6%9b%b8\/"},"modified":"2025-07-31T23:35:24","modified_gmt":"2025-07-31T14:35:24","slug":"%e3%83%8e%e3%83%bc%e3%83%89fs-nodejs%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%81%ae%e4%bd%9c%e6%88%90%e3%80%81%e8%aa%ad%e3%81%bf%e8%be%bc%e3%81%bf%e3%80%81%e6%9b%b8","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/%e3%83%8e%e3%83%bc%e3%83%89fs-nodejs%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%81%ae%e4%bd%9c%e6%88%90%e3%80%81%e8%aa%ad%e3%81%bf%e8%be%bc%e3%81%bf%e3%80%81%e6%9b%b8\/","title":{"rendered":"\u30ce\u30fc\u30c9FS &#8211; NodeJS\u306b\u304a\u3051\u308b\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210\u3001\u8aad\u307f\u8fbc\u307f\u3001\u66f8\u304d\u8fbc\u307f"},"content":{"rendered":"<p>\u30ce\u30fc\u30c9 FS\u306f\u3001\u30ce\u30fc\u30c9JS\u306e\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u8868\u3057\u307e\u3059\u3002\u4ee5\u524d\u306e\u6295\u7a3f\u3067\u3001require()\u547c\u3073\u51fa\u3057\u3092\u4f7f\u7528\u3057\u3066\u30ce\u30fc\u30c9JS\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3059\u3067\u306b\u8b70\u8ad6\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u6295\u7a3f\u3092\u8aad\u3080\u524d\u306b\u3001&#8221;\u30ce\u30fc\u30c9JS\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3068\u30a4\u30f3\u30dd\u30fc\u30c8&#8221;\u3068\u3044\u3046\u6295\u7a3f\u3092\u8aad\u3093\u3067\u3001require()\u547c\u3073\u51fa\u3057\u306e\u4f7f\u7528\u6cd5\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2>\u30ce\u30fc\u30c9FS<\/h2>\n<p>\u3053\u306e\u6295\u7a3f\u3067\u306f\u3001Node JS\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306e\u300cfs\u300d\u30e2\u30b8\u30e5\u30fc\u30eb\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002FS\u306f\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u7565\u79f0\u3067\u3059\u3002\u3053\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u306fIO\u3084FileSystem\u3084Stream\u30e2\u30b8\u30e5\u30fc\u30eb\u3068\u3057\u3066\u3082\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>NodeJS\u306eFS\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u6295\u7a3f\u8981\u7d04<\/h2>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>Node FS\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u7d39\u4ecb<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>Node JS \u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>Node JS \u30d5\u30a1\u30a4\u30eb\u3078\u306e\u66f8\u304d\u8fbc\u307f<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>Node JS \u30d5\u30a1\u30a4\u30eb\u306e\u8aad\u307f\u8fbc\u307f<\/ol>\n<h3>Node FS Module\u306b\u3064\u3044\u3066\u306e\u6982\u8981<\/h3>\n<p>Node FS \u30e2\u30b8\u30e5\u30fc\u30eb\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3068\u3084\u308a\u53d6\u308a\u3057\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210\u3001\u8aad\u307f\u8fbc\u307f\u3001\u524a\u9664\u3001\u66f4\u65b0\u306a\u3069\u306e\u5165\u51fa\u529b\u64cd\u4f5c\u3092\u884c\u3046\u305f\u3081\u306e API \u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002Node \u306e\u4ed6\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u3067\u3042\u308b\u300cnpm\u300d\u300chttp\u300d\u306a\u3069\u3068\u540c\u69d8\u306b\u3001Node JS \u306e\u300cfs\u300d\u3082\u57fa\u672c\u7684\u306b Node JS \u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306b\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002Node JS FS \u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3059\u308b\u305f\u3081\u306e\u7279\u5225\u306a\u624b\u9806\u306f\u5fc5\u8981\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h3>\u30cd\u30a4\u30c6\u30a3\u30d6\u306b\u65e5\u672c\u8a9e\u3067\u8a00\u3044\u63db\u3048\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059:<br \/>\n&#8220;\u30ce\u30fc\u30c9\u306eFS\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u30a4\u30f3\u30dd\u30fc\u30c8&#8221;<\/h3>\n<p>\u79c1\u305f\u3061\u306f\u5358\u7d14\u306b\u3001\u30ce\u30fc\u30c9\u306efs\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u79c1\u305f\u3061\u306e\u30b3\u30fc\u30c9\u306b\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u3066\u3001IO\u64cd\u4f5c\u306e\u30b3\u30fc\u30c9\u3092\u66f8\u304d\u59cb\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30ce\u30fc\u30c9\u306efs\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3059\u308b\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>var fs = require(\"fs\");\r\n<\/code><\/pre>\n<p>\u3053\u306e `require()`\u30b3\u30fc\u30eb\u306f\u3001Node JS\u306e&#8221;fs&#8221;\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u3001Node FS\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u3053\u308c\u304c\u5b8c\u4e86\u3059\u308b\u3068\u3001node fs\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u7528\u3057\u3066\u4efb\u610f\u306eIO\u64cd\u4f5c\u3092\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002${Eclipse_Workspace}\u304cD:\\RamWorkspaces\\NodeWorkSpace\u3092\u6307\u3059\u3082\u306e\u3068\u4eee\u5b9a\u3057\u307e\u3057\u3087\u3046\u3002\u3053\u308c\u4ee5\u964d\u306f\u3001\u3053\u306e\u5909\u6570\u3092\u79c1\u306eEclipse\u306e\u30ef\u30fc\u30af\u30b9\u30da\u30fc\u30b9\u3092\u53c2\u7167\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002Java\u3084. NET\u3001C\/C++\u306e\u958b\u767a\u8005\u3068\u3057\u3066\u3001\u65e2\u306b\u3044\u304f\u3064\u304b\u306eIO\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b66\u7fd2\u304a\u3088\u3073\u66f8\u3044\u3066\u304d\u305f\u3053\u3068\u3092\u60f3\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002IO\u307e\u305f\u306f\u30b9\u30c8\u30ea\u30fc\u30e0\u306f2\u3064\u306e\u30bf\u30a4\u30d7\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li>Write Stream \u2013 To write data to a Stream.<\/li>\n<li>Read Stream \u2013 To read data from a Stream.<\/li>\n<\/ul>\n<h3>Node.js\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3059\u308b<\/h3>\n<p>\u4eca\u5ea6\u306f\u3001Node JS FS API\u3092\u4f7f\u7528\u3057\u3066\u65b0\u3057\u3044\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8a71\u3057\u5408\u3044\u307e\u3059\u3002<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u30a8\u30af\u30ea\u30d7\u30b9IDE\u3067Node JS\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>\u524d\u306e\u4f8b\u304b\u3089package.json\u30d5\u30a1\u30a4\u30eb\u3092\u30b3\u30d4\u30fc\u3057\u3001\u5fc5\u8981\u306a\u90e8\u5206\u3092\u66f4\u65b0\u3057\u3066\u304f\u3060\u3055\u3044\u3002<br \/>\n{<br \/>\n&#8220;name&#8221;: &#8220;filesystem&#8221;,<br \/>\n&#8220;version&#8221;: &#8220;1.0.0&#8221;,<br \/>\n&#8220;description&#8221;: &#8220;\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u4f8b&#8221;,<br \/>\n&#8220;main&#8221;: &#8220;filesystem&#8221;,<br \/>\n&#8220;author&#8221;: &#8220;JournalDEV&#8221;,<br \/>\n&#8220;engines&#8221;:{<br \/>\n&#8220;node&#8221;:&#8221;*&#8221;<br \/>\n}<br \/>\n}<\/p>\n<p>\u4ee5\u4e0b\u306e\u5185\u5bb9\u3092\u6301\u3064JavaScript\u30d5\u30a1\u30a4\u30eb\u3001fs-create-file.js\u3092\u4f5c\u6210\u3057\u3066\u304f\u3060\u3055\u3044\u3002<br \/>\n\/**<br \/>\n* \u30ce\u30fc\u30c9FS\u306e\u4f8b<br \/>\n* \u30ce\u30fc\u30c9JS\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210<br \/>\n*\/<br \/>\nvar fs = require(&#8220;fs&#8221;);<\/p>\n<p>var createStream = fs.createWriteStream(&#8220;JournalDEV.txt&#8221;);<br \/>\ncreateStream.end();<\/p>\n<p>\u30b3\u30fc\u30c9\u306e\u8aac\u660e: var fs = require(&#8220;fs&#8221;)\u306f\u6307\u5b9a\u3055\u308c\u305fNode FS\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u30ed\u30fc\u30c9\u3057\u3001fs\u3068\u3044\u3046\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5272\u308a\u5f53\u3066\u308b\u305f\u3081\u306erequire\uff08\uff09\u547c\u3073\u51fa\u3057\u3067\u3059\u3002fs.createWriteStream\uff08filename\uff09\u547c\u3073\u51fa\u3057\u306f\u3001\u6307\u5b9a\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u540d\u3067\u66f8\u304d\u8fbc\u307f\u30b9\u30c8\u30ea\u30fc\u30e0\u3068\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002createStream.end\uff08\uff09\u547c\u3073\u51fa\u3057\u306f\u3001\u958b\u3044\u305f\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u7d42\u4e86\u307e\u305f\u306f\u9589\u3058\u307e\u3059\u3002<\/p>\n<p>fs-create-file.js\u3092\u5b9f\u884c\u3059\u308b\u524d\u306b\u3001\u307e\u305a\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u5185\u5bb9\u3092\u78ba\u8a8d\u3057\u3001&#8221;JournalDEV.txt&#8221;\u30d5\u30a1\u30a4\u30eb\u304c\u5b58\u5728\u3057\u306a\u3044\u3053\u3068\u306b\u6c17\u4ed8\u304d\u307e\u3059\u3002<\/p>\n<p>${Eclipse_Workspace}\/filesystem\u3067\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u958b\u304d\u3001\u4ee5\u4e0b\u306e\u753b\u50cf\u306b\u793a\u3059\u3088\u3046\u306bnode\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u3001fs-create-file.js\u30d5\u30a1\u30a4\u30eb\u3092\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u5185\u5bb9\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u7a7a\u306e\u300cJournalDEV.txt\u300d\u3068\u3044\u3046\u30d5\u30a1\u30a4\u30eb\u304c\u4f5c\u6210\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u306b\u6c17\u4ed8\u304d\u307e\u3059\u3002<\/p>\n<h3>Node JS\u3067\u30d5\u30a1\u30a4\u30eb\u306b\u66f8\u304d\u8fbc\u3080<\/h3>\n<p>\u79c1\u305f\u3061\u306fNode\u306eFS API\u3092\u4f7f\u7528\u3057\u3066\u65b0\u3057\u3044\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3057\u3001\u305d\u306e\u4e2d\u306b\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u3080\u3053\u3068\u306b\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u524d\u306e\u4f8b\u306e\u7d9a\u304d\u3067\u3059\u3002<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>${Eclipse_Workspace}\/filesystem\u30d5\u30a9\u30eb\u30c0\u304b\u3089\u4ee5\u524d\u306b\u4f5c\u6210\u3055\u308c\u305f\u300cJournalDEV.txt\u300d\u3092\u524a\u9664\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>\u4ee5\u4e0b\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u6301\u3064Java\u30b9\u30af\u30ea\u30d7\u30c8\u30d5\u30a1\u30a4\u30eb\uff08fs-write-file.js\uff09\u3092\u4f5c\u6210\u3057\u3066\u304f\u3060\u3055\u3044\u3002<br \/>\n\/**<br \/>\n* Node FS\u306e\u4f8b<br \/>\n* Node JS\u3067\u30d5\u30a1\u30a4\u30eb\u306b\u66f8\u304d\u8fbc\u3080<br \/>\n*\/<br \/>\nvar fs = require(&#8220;fs&#8221;);<\/p>\n<p>var writeStream = fs.createWriteStream(&#8220;JournalDEV.txt&#8221;);<br \/>\nwriteStream.write(&#8220;\u3053\u3093\u306b\u3061\u306f\u3001JournalDEV\u306e\u30e6\u30fc\u30b6\u30fc\u306e\u7686\u3055\u3093\u3002&#8221;);<br \/>\nwriteStream.write(&#8220;\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3059\u3002&#8221;);<br \/>\nwriteStream.end();<\/p>\n<p>createStream.write(sometext)\u547c\u3073\u51fa\u3057\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u306b\u30c6\u30ad\u30b9\u30c8\u3092\u66f8\u304d\u8fbc\u3080\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3092${Eclipse_Workspace}\/filesystem\u3067\u958b\u304d\u3001\u4ee5\u4e0b\u306b\u793a\u3059\u3088\u3046\u306bnode\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066fs-write-file.js\u30d5\u30a1\u30a4\u30eb\u3092\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>${Eclipse_Workspace}\/filesystem\u30d5\u30a9\u30eb\u30c0\u306b\u79fb\u52d5\u3057\u3001\u300cJournalDEV.txt\u300d\u3092\u958b\u3044\u3066\u305d\u306e\u5185\u5bb9\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u65b0\u3057\u3044\u30d5\u30a1\u30a4\u30eb\u304c\u4f5c\u6210\u3055\u308c\u3001\u305d\u306e\u30d5\u30a1\u30a4\u30eb\u306b\u4e00\u90e8\u306e\u30c7\u30fc\u30bf\u304c\u66f8\u304d\u8fbc\u307e\u308c\u307e\u3057\u305f\u3002<\/p>\n<h3>Node JS\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u3080<\/h3>\n<p>\u79c1\u305f\u3061\u306fNode FS API\u3092\u4f7f\u7528\u3057\u3066\u3001\u65e2\u5b58\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u3092\u958b\u3044\u3066\u8aad\u307f\u8fbc\u307f\u3001\u305d\u306e\u5185\u5bb9\u3092\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u66f8\u304d\u8fbc\u3080\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u4ee5\u524d\u306e\u4f8b\u306e\u7d9a\u304d\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u540d\u524d\u4ed8\u304d\u306eJavaScript\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u308c\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u3001\u3053\u306e\u4f8b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u4ee5\u4e0b\u306e\u5185\u5bb9\u3092\u6301\u3064Java Script\u30d5\u30a1\u30a4\u30eb\u3001fs-read-file1.js\u3092\u4f5c\u6210\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\/**<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>* \u30ce\u30fc\u30c9FS\u30d5\u30a1\u30a4\u30eb\u306e\u8aad\u307f\u8fbc\u307f<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>* \u30ce\u30fc\u30c9JS\u30d5\u30a1\u30a4\u30eb\u306e\u8aad\u307f\u8fbc\u307f<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>*\/<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>var fs = require(&#8220;fs&#8221;);<\/ol>\n<\/li>\n<\/ol>\n<p>function readData(err, data) {<br \/>\nconsole.log(data);<br \/>\n}<\/p>\n<p>fs.readFile(&#8216;JournalDEV.txt&#8217;, &#8216;utf8&#8217;, readData);<\/p>\n<p>\u30b3\u30fc\u30c9\u306e\u8aac\u660e\uff1areadData()\u306f2\u3064\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u53d7\u3051\u53d6\u308bJavaScript\u95a2\u6570\u3067\u3059\u3002<\/p>\n<p>err\uff1a\u30a8\u30e9\u30fc\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u3059\u3002\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u30d5\u30a1\u30a4\u30eb\u306e\u30aa\u30fc\u30d7\u30f3\u3084\u30c7\u30fc\u30bf\u306e\u8aad\u307f\u53d6\u308a\u306b\u5931\u6557\u3057\u305f\u5834\u5408\u3001FS\u30e2\u30b8\u30e5\u30fc\u30eb\u306f\u3053\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u306b\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u66f8\u304d\u8fbc\u307f\u307e\u3059\u3002<br \/>\ndata\uff1a\u30c7\u30fc\u30bf\u3092\u4fdd\u6301\u3059\u308b\u5909\u6570\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u95a2\u6570\u306fdata\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u53d6\u308a\u3001\u305d\u306e\u30c7\u30fc\u30bf\u3092\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u8868\u793a\u3057\u307e\u3059\u3002fs.readFile()\u306fNode JS FS API\u3067\u3059\u3002\u6b21\u306e3\u3064\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u53d6\u308a\u307e\u3059\u3002<\/p>\n<p>\u30d5\u30a1\u30a4\u30eb\u540d<br \/>\n\u8aad\u307f\u8fbc\u3080\u30d5\u30a1\u30a4\u30eb\u30c7\u30fc\u30bf\u306e\u5f62\u5f0f<br \/>\nJavaScript\u95a2\u6570\u307e\u305f\u306fJavaScript\u306e\u533f\u540d\u95a2\u6570<br \/>\nreadFile()\u306f\u3001\u6307\u5b9a\u3057\u305f\u5f62\u5f0f\uff08\u7b2c2\u30d1\u30e9\u30e1\u30fc\u30bf\uff09\u3067\u6307\u5b9a\u3057\u305f\u30d5\u30a1\u30a4\u30eb\u540d\uff08\u7b2c1\u30d1\u30e9\u30e1\u30fc\u30bf\uff09\u304b\u3089\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u308a\u3001\u7b2c3\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u6307\u5b9a\u3055\u308c\u305f\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u3044\u304f\u3064\u304b\u306e\u64cd\u4f5c\u3092\u884c\u3044\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u7b2c3\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3057\u3066\u30d7\u30ec\u30fc\u30f3\u306aJavaScript\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u6b21\u306e\u4f8b\u3067JavaScript\u306e\u533f\u540d\u95a2\u6570\u306e\u4f7f\u7528\u65b9\u6cd5\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002\u3053\u306e\u4f8b\u3067\u306f\u3001readFile()\u304c&#8221;JournalDEV.txt&#8221;\u30d5\u30a1\u30a4\u30eb\u304b\u3089\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u308a\u3001\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u66f8\u304d\u8fbc\u3093\u3067\u3044\u307e\u3059\u3002&#8217;utf8&#8217;\u5f62\u5f0f\u3092\u4f7f\u7528\u3057\u306a\u3044\u5834\u5408\u3001\u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u304c\u53d6\u5f97\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u6570\u5206\u5f8c\u306b\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<p>${Eclipse_Workspace}\/filesystem\u3067\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u958b\u304d\u3001fs-read-file1.js\u30d5\u30a1\u30a4\u30eb\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306bnode\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3067\u3001\u30b3\u30fc\u30c9\u304c\u30d5\u30a1\u30a4\u30eb\u3092\u6b63\u5e38\u306b\u958b\u304d\u3001\u305d\u306e\u5185\u5bb9\u3092\u8aad\u307f\u53d6\u308a\u3001\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u66f8\u304d\u8fbc\u3093\u3060\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n<h3>Node.js\u3067\u30d0\u30a4\u30ca\u30ea\u3068\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u53d6\u308b<\/h3>\n<p>\u4eca\u56de\u306fJavaScript\u306e\u533f\u540d\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u304b\u3089\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u307e\u3059\u3002\u3053\u306e\u4f8b\u3092\u898b\u3066\u3001\u7406\u89e3\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4ee5\u524d\u306efs-read-file1.js\u306e\u4f8b\u3068\u4f3c\u3066\u3044\u307e\u3059\u304c\u3001\u533f\u540d\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002JavaScript\u306e\u533f\u540d\u95a2\u6570\u306b\u6163\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001JavaScript\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3092\u53c2\u7167\u3057\u3066\u7406\u89e3\u3092\u6df1\u3081\u3066\u304f\u3060\u3055\u3044\u3002\u4ee5\u4e0b\u306e\u5185\u5bb9\u306eJavaScript\u30d5\u30a1\u30a4\u30eb\uff08fs-read-file2.js\uff09\u3092\u4f5c\u6210\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre class=\"post-pre\"><code>\/**\r\n * Node FS File System Module\r\n * Node.js read file example\r\n *\/\r\nvar fs = require(\"fs\");\r\n\r\nfs.readFile('JournalDEV.txt', 'utf8', function(err, data) {\r\n\t  console.log(data);\r\n});\r\n<\/code><\/pre>\n<p>\u30b3\u30fc\u30c9\u306e\u8aac\u660e\uff1a\u3053\u3053\u3067\u306f\u3001readFile()\u304cJavaScript\u306e\u533f\u540d\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u304b\u3089\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u308a\u3001\u305d\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u3092\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u66f8\u304d\u8fbc\u3093\u3067\u3044\u307e\u3059\u3002\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001fs-read-file2.js\u306e\u4f8b\u3068\u540c\u3058\u51fa\u529b\u304c\u5f97\u3089\u308c\u307e\u3059\u3002\u4eca\u5ea6\u306f\u3001\u30d0\u30a4\u30ca\u30ea\u51fa\u529b\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u300cutf8\u300d\u306e\u30c7\u30fc\u30bf\u5f62\u5f0f\u3092\u524a\u9664\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre class=\"post-pre\"><code>\/**\r\n * Node FileSystem Module  \r\n * Node JS Read File Binary Data\r\n *\/\r\nvar fs = require(\"fs\");\r\n\r\nfs.readFile('JournalDEV.txt', function(err, data) {\r\n\t  console.log(data);\r\n});\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/65648a25daa94e2bdf7bb657\/26-0.png\" alt=\"Node.js read file as binary data\" \/><\/div>\n<pre class=\"post-pre\"><code>[anyFSAPIObject] + Press . (dot) + After dot Press (CTRL + Space Bar)\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/65648a25daa94e2bdf7bb657\/28-0.png\" alt=\"Node.js FS module Enide IDE\" \/><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u30ce\u30fc\u30c9 FS\u306f\u3001\u30ce\u30fc\u30c9JS\u306e\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u8868\u3057\u307e\u3059\u3002\u4ee5\u524d\u306e\u6295\u7a3f\u3067\u3001require()\u547c\u3073\u51fa\u3057\u3092\u4f7f\u7528\u3057\u3066\u30ce\u30fc\u30c9JS\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3059\u3067\u306b\u8b70\u8ad6\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u6295\u7a3f\u3092\u8aad\u3080\u524d\u306b\u3001&#8221;\u30ce [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[26,61],"class_list":["post-437","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-26","tag-61"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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