{"id":98441,"date":"2019-05-27T02:34:06","date_gmt":"2019-05-26T17:34:06","guid":{"rendered":"https:\/\/www.sejuku.net\/blog\/?p=98441"},"modified":"2024-10-31T15:56:23","modified_gmt":"2024-10-31T06:56:23","slug":"ruby%e3%81%ae%e8%a9%95%e5%88%a4%e3%82%92%e3%83%87%e3%83%bc%e3%82%bf%e3%81%a7%e5%a4%a7%e8%aa%bf%e6%9f%bb%ef%bc%81%e6%b1%82%e4%ba%ba%e5%b8%82%e5%a0%b4%e3%82%84%e4%bb%8a%e5%be%8c%e3%81%ae%e3%83%8b","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/98441","title":{"rendered":"Ruby\u306e\u8a55\u5224\u3092\u30c7\u30fc\u30bf\u3067\u5927\u8abf\u67fb\uff01\u6c42\u4eba\u5e02\u5834\u3084\u4eca\u5f8c\u306e\u30cb\u30fc\u30ba\u3092\u5206\u6790"},"content":{"rendered":"


\nRuby\u306e\u8a55\u5224\u3063\u3066\u3069\u3046\u306a\u3093\u3060\u308d\u3046\uff1f
\n\u306a\u3093\u3060\u304b\u3001\u7d42\u308f\u3063\u305f\u3068\u304b\u3001\u3042\u3093\u307e\u308a\u826f\u304f\u306a\u3044\u8a55\u5224\u3092\u898b\u304b\u3051\u308b\u3051\u3069\u2026\u2026
\n<\/div><\/p>\n

\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3092\u5b66\u307c\u3046\u3068\u3059\u308b\u3068\u3001\u6c17\u306b\u306a\u3063\u3066\u304f\u308b\u3082\u306e\u306e\u4e00\u3064\u304c\u305d\u306e\u8a00\u8a9e\u306e\u8a55\u5224\u3067\u3059\u3002<\/p>\n

\u4eca\u5f8c\u3069\u3093\u3069\u3093\u6d41\u884c\u308b\uff01\u3068\u304b\u3001\u3007\u3007\u306e\u4f01\u696d\u3082\u63a1\u7528\u3057\u305f\u4fe1\u983c\u6027\uff01\u3068\u304b\u3001\u30dd\u30b8\u30c6\u30a3\u30d6\u306a\u60c5\u5831\u3070\u304b\u308a\u306a\u3089\u3070\u3044\u3044\u306e\u3067\u3059\u304c\u3001\u73fe\u5b9f\u306b\u306f\u305d\u3046\u3082\u884c\u304d\u307e\u305b\u3093\u3002<\/p>\n

\u8abf\u3079\u3066\u307f\u308b\u3068\u3001\u521d\u5fc3\u8005\u306f\u4f7f\u3046\u3079\u304d\u3067\u306f\u306a\u3044\u3001\u4e16\u754c\u7684\u306b\u6d41\u884c\u306f\u7d42\u308f\u3063\u305f\u3001\u3082\u3046\u3059\u3050\u5225\u306e\u8a00\u8a9e\u306b\u53d6\u3063\u3066\u4ee3\u308f\u3089\u308c\u308betc…<\/p>\n

\u30cd\u30ac\u30c6\u30a3\u30d6\u306a\u60c5\u5831\u307b\u3069\u76ee\u306b\u3064\u304f\u3082\u306e\u3067\u3059\u3057\u3001\u3069\u3046\u306b\u3082\u30cd\u30c3\u30c8\u4e0a\u3067\u306f\u30cd\u30ac\u30c6\u30a3\u30d6\u306a\u60c5\u5831\u306e\u307b\u3046\u304c\u591a\u3044\u6c17\u3082\u3057\u307e\u3059\u3002\u4eca\u56de\u53d6\u308a\u4e0a\u3052\u308bRuby\u3082\u305d\u306e1\u3064\u3068\u8a00\u3063\u3066\u3044\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n

\u66f0\u304f\u3001Ruby\u306f\u6b7b\u3093\u3060\u3060\u306e\u3001Rails\u306f\u7d42\u308f\u3063\u305f\u3060\u306e\u3001\u5c11\u3057\u691c\u7d22\u3057\u3066\u307f\u308c\u3070\u305d\u3093\u306a\u60c5\u5831\u304c\u7121\u6570\u306b\u98db\u3073\u4ea4\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u306f\u305f\u3057\u3066Ruby\u306f\u6b7b\u3093\u3060\u306e\u304b\uff1fRails\u306f\u3082\u3046\u7d42\u308f\u3063\u3066\u3057\u307e\u3063\u305f\u306e\u304b\uff1f\u4eca\u56de\u306f\u69d8\u3005\u306a\u30c7\u30fc\u30bf\u304b\u3089Ruby\u306e\u8a55\u5224\u3092\u691c\u8a3c\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n

\u3055\u3063\u305d\u304f\u3044\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n

Ruby\u306e\u8a55\u5224\u3092\u8a00\u8a9e\u306e\u4ed5\u69d8\u304b\u3089\u63a2\u308b<\/h2>\n

\u305d\u3082\u305d\u3082Ruby\u306f\u3069\u3093\u306a\u8a00\u8a9e\uff1f<\/h3>\n

\u305d\u3082\u305d\u3082\u8ad6\u306b\u306a\u308a\u307e\u3059\u304c\u3001Ruby\u306f1995\u5e74\u306b\u307e\u3064\u3082\u3068\u3086\u304d\u3072\u308d\u6c0f\uff08\u901a\u79f0Matz\uff09\u304c\u958b\u767a\u3057\u305f\u65e5\u672c\u88fd\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u3059\u3002<\/p>\n

Ruby\u306e\u30e2\u30c3\u30c8\u30fc\u306f\u300c\u697d\u3057\u3055\u300d\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3002<\/b>\u8a00\u8a9e\u3092\u4f5c\u308b\u4eba\u3001\u4f7f\u3046\u4eba\u3001\u5b66\u3076\u4eba\u3059\u3079\u3066\u304c\u697d\u3057\u3081\u308b\u3053\u3068\u3092\u76ee\u7684\u3068\u3057\u3066\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u300c\u697d\u3057\u3055\u300d\u304c\u30e6\u30fc\u30b6\u30fc\u306b\u5e83\u304f\u53d7\u3051\u5bb9\u308c\u3089\u308c\u305f\u305f\u3081\u3001Ruby\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30b9\u30af\u30ea\u30d7\u30c8\u8a00\u8a9e\u3068\u3057\u3066\u4e00\u5b9a\u306e\u5730\u4f4d\u3092\u78ba\u7acb\u3057\u307e\u3057\u305f\u3002Wikipedia\u306b\u3042\u308bRuby\u306e\u30ed\u30b4\u306b\u306f\u201dA Programmer’s Best Friend\u201d\u306e\u4e00\u6587\u304c\u6dfb\u3048\u3089\u308c\u3066\u3044\u308b\u3053\u3068\u304b\u3089\u3082\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3059\u308b\u4eba\u3092\u5927\u4e8b\u306b\u3057\u3066\u3044\u308b\u8a00\u8a9e\u3068\u3044\u3046\u3053\u3068\u304c\u4f1d\u308f\u308b\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n

Ruby\u306e\u697d\u3057\u3055\u3092\u4f1d\u3048\u308b\u4f8b\u3068\u3057\u3066\u3001\u6574\u6570\u304c\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u914d\u5217\u306e\u4e2d\u8eab\u306e\u5408\u8a08\u3092\u6c42\u3081\u308b\u51e6\u7406\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002Java\u3068Ruby\u3067\u51e6\u7406\u306e\u66f8\u304d\u65b9\u3092\u6bd4\u8f03\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n

Java\u3060\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u66f8\u304d\u65b9\u304c\u521d\u5fc3\u8005\u5411\u3051\u3068\u3057\u3066\u8aac\u660e\u3055\u308c\u307e\u3059\u3002<\/p>\n

public class Main {\r\n    public static void main(String[] args) {\r\n        int numbers[] = {1, 2, 3, 4, 5};\r\n        int sum = 0;\r\n        for (int i = 0; i < numbers.length; i++){\r\n            sum += numbers[i];\r\n        }\r\n        System.out.println(sum);\r\n    }\r\n}<\/pre>\n
\u3082\u3063\u3068\u30b9\u30de\u30fc\u30c8\u306b\u66f8\u3051\u308b\u305e\uff01\u3068\u304a\u6012\u308a\u306eJava\u30e6\u30fc\u30b6\u30fc\u306e\u7686\u3055\u307e\u306e\u304a\u6c17\u6301\u3061\u306f\u91cd\u3005\u627f\u77e5\u3057\u3066\u304a\u308a\u307e\u3059\u304c\u3001\u521d\u5fc3\u8005\u5411\u3051\u3067\u308f\u304b\u308a\u3084\u3059\u3055\u3092\u91cd\u8996\u3057\u305f\u7d50\u679c\u3068\u3044\u3046\u3053\u3068\u3067\u3054\u5bb9\u8d66\u3044\u305f\u3060\u3051\u308c\u3070\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n
\u307e\u3042\u3001\u3044\u304b\u306b\u3082\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3057\u3066\u3044\u308b\u611f\u306e\u3042\u308b\u66f8\u304d\u65b9\u3067\u3059\u3088\u306d\u3002\u305f\u3060\u3001\u521d\u5fc3\u8005\u306b\u306f\u610f\u5473\u306e\u308f\u304b\u3089\u306a\u3044\u90e8\u5206\u3082\u591a\u304f\u542b\u307e\u308c\u3066\u3044\u308b\u306e\u304c\u4e8b\u5b9f\u3067\u3057\u3087\u3046\u3002public class Main\u3068\u304b\u3001public static void main(String[] args) \u3042\u305f\u308a\u306f\u5165\u9580\u66f8\u306e\u5f8c\u534a\u307e\u3067\u304a\u307e\u3058\u306a\u3044\u6271\u3044\u3067\u3068\u308a\u3042\u3048\u305a\u66f8\u304f\u3082\u306e\u3001\u3068\u3044\u3046\u9032\u3081\u65b9\u3092\u3059\u308b\u5165\u9580\u66f8\u3082\u591a\u3044\u3067\u3059\u3002<\/p>\n
\u4e00\u65b9\u306eRuby\u3060\u3068\u540c\u3058\u51e6\u7406\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3059\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n
numbers = [1, 2, 3, 4, 5]\r\nsum = 0\r\nnumbers.each do |n|\r\n    sum += n\r\nend\r\nputs sum<\/pre>\n
\u30b9\u30af\u30ea\u30d7\u30c8\u8a00\u8a9e\u3068Java\u3092\u6bd4\u8f03\u3059\u308b\u3053\u3068\u81ea\u4f53\u30ca\u30f3\u30bb\u30f3\u30b9\u3068\u3044\u3046\u3054\u6307\u6458\u306f\u3054\u3082\u3063\u3068\u3082\u3067\u3059\u304c\u3001\u898b\u305f\u76ee\u306b\u77ed\u304f\u308f\u304b\u308a\u3084\u3059\u304f\u306a\u3063\u305f\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\uff1f\u7279\u306b\u3001\u3059\u3079\u3066\u306e\u6587\u5b57\u304c\u3060\u3044\u305f\u3044\u4f55\u3092\u3084\u3063\u3066\u3044\u308b\u306e\u304b\u308f\u304b\u308a\u3084\u3059\u3044\u3001\u3068\u3044\u3046\u306e\u304c\u521d\u5fc3\u8005\u306b\u3068\u3063\u3066\u3042\u308a\u304c\u305f\u3044\u30dd\u30a4\u30f3\u30c8\u306b\u306a\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n
\u3053\u306e\u3088\u3046\u306b\u3001Ruby\u306f\u72ec\u7279\u306e\u4fa1\u5024\u89b3\u3068\u5b58\u5728\u611f\u3092\u5099\u3048\u3001\u4e00\u5b9a\u306e\u5730\u4f4d\u3092\u78ba\u7acb\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u305d\u308c\u304c\u6fc0\u5909\u3057\u305f\u306e\u304c\u3001\u6b21\u306b\u7d39\u4ecb\u3059\u308bRuby on Rails\u304c\u767b\u5834\u3057\u305f\u3053\u3068\u3067\u3057\u305f\u3002<\/p>\n
Ruby on Rails\u306e\u767b\u5834<\/h3>\n
Ruby on Rails\uff08\u30eb\u30d3\u30fc \u30aa\u30f3 \u30ec\u30a4\u30eb\u30ba \u4ee5\u4e0bRails\uff09\u306f\u30012004\u5e74\u306b\u30c7\u30f3\u30de\u30fc\u30af\u306e\u30d7\u30ed\u30b0\u30e9\u30de\u3067\u3042\u308b\u30c7\u30a4\u30f4\u30a3\u30c3\u30c9\u30fb\u30cf\u30a4\u30cd\u30de\u30a4\u30e4\u30fc\u30fb\u30cf\u30f3\u30bd\u30f3\uff08\u901a\u79f0DHH\uff09\u306b\u3088\u3063\u3066\u4f5c\u3089\u308c\u305fWeb\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002<\/p>\n
Web\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306f\u3001Web\u30b5\u30fc\u30d3\u30b9\u3092\u4f5c\u308b\u969b\u306b\u5fc5\u8981\u306b\u306a\u308b\u90e8\u54c1\u3092\u3042\u3089\u304b\u3058\u3081\u7528\u610f\u3057\u3066\u3042\u308b\u90e8\u54c1\u30bb\u30c3\u30c8\u306e\u3088\u3046\u306a\u3082\u306e\u3068\u304a\u8003\u3048\u304f\u3060\u3055\u3044\u3002\u30ed\u30b0\u30a4\u30f3\u6a5f\u80fd\u3084\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3068\u306e\u9023\u643a\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u306a\u3069\u304c\u7c21\u5358\u306b\u5b9f\u73fe\u3067\u304d\u308b\u3088\u3046\u306b\u3001\u3042\u3089\u304b\u3058\u3081\u96db\u5f62\u306b\u306a\u308b\u3082\u306e\u3092\u7528\u610f\u3057\u3066\u3042\u308b\u3082\u306e\u3001\u3068\u3044\u3046\u306e\u304c\u4e00\u822c\u7684\u306aWeb\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u3044\u3048\u307e\u3059\u3002<\/p>\n
\u305d\u3057\u3066Rails\u306f\u540d\u524d\u306b\u6709\u308b\u3088\u3046\u306bRuby\u3067\u52d5\u304fWeb\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002\u305d\u308c\u307e\u3067Web\u7cfb\u306e\u8a00\u8a9e\u3068\u3044\u3046\u3068\u3001\u5546\u696d\u30fb\u5927\u898f\u6a21\u5411\u3051\u306bJava\u3001\u30b9\u30bf\u30fc\u30c8\u30a2\u30c3\u30d7\u3084\u5c0f\u898f\u6a21\u306a\u30b7\u30b9\u30c6\u30e0\u5411\u3051\u306bPHP\u304c\u4e3b\u6d41\u3067\u3057\u305f\u3002Ruby\u306e\u5b58\u5728\u611f\u306f\u305d\u3053\u307e\u3067\u306a\u304b\u3063\u305f\u306e\u3067\u3059\u3002<\/p>\n
\u3067\u3059\u304c\u3001Rails\u306e\u767b\u5834\u3067\u72b6\u6cc1\u306f\u6fc0\u5909\u3057\u307e\u3057\u305f\u3002Rails\u3092\u4f7f\u3046\u3053\u3068\u3067PHP\u30673\u30f6\u6708\u304b\u304b\u3063\u3066\u3044\u305f\u6a5f\u80fd\u304c15\u5206\u3067\u5b9f\u88c5\u3067\u304d\u305f<\/b>\u3068\u304b\u3001\u30c1\u30fc\u30e0\u5185\u306e\u30b3\u30fc\u30c9\u304c\u30d0\u30e9\u30d0\u30e9\u3060\u3063\u305f\u306e\u304cRails\u306b\u3088\u3063\u3066\u898f\u5f8b\u304c\u3067\u304d\u305f<\/b>\u3068\u304b\u3002<\/p>\n
Rails\u304c\u5099\u3048\u3066\u3044\u305fDRY\u539f\u5247\u3001CoC\u539f\u5247\u306a\u3069\u306b\u3088\u308a\u3001Web\u958b\u767a\u306f\u975e\u5e38\u306b\u52b9\u7387\u7684\u306b\u884c\u3048\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u306e\u3067\u3059\u3002<\/p>\n
\u305d\u3053\u304b\u3089Rails\u306f\u6642\u4ee3\u306e\u5bf5\u5150\u306b\u4e00\u6c17\u306b\u4e0a\u308a\u8a70\u3081\u307e\u3057\u305f\u3002<\/p>\n
\u521d\u671f\u306eTwitter\u3084Airbnb\u306a\u3069\u306e\u540d\u3060\u305f\u308b\u30b9\u30bf\u30fc\u30c8\u30a2\u30c3\u30d7\uff08\u305d\u3057\u3066\u73fe\u5728\u5927\u6210\u529f\u3092\u53ce\u3081\u305f\u4f01\u696d\uff09\u306b\u63a1\u7528\u3055\u308c\u305f\u3053\u3068\u3067\u305d\u306e\u6d41\u308c\u306f\u3055\u3089\u306b\u52a0\u901f\u3057\u3066\u3044\u304d\u3001\u5168\u4e16\u754c\u7684\u306bRails\u30d6\u30fc\u30e0\u304c\u8d77\u3053\u3063\u305f\u306e\u3067\u3059\u3002<\/p>\n
Rails\u306b\u3064\u3044\u3066\u3001\u3088\u308a\u6df1\u304f\u77e5\u308a\u305f\u3044\u65b9\u306f\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3082\u3054\u89a7\u304f\u3060\u3055\u3044\u3002
\n            \n                
\n                
\n                    
\n                    \n                    <\/div>\n                    
\n                    
Ruby on Rails\u3068\u306f\uff1f\u7279\u5fb4\u3084\u3067\u304d\u308b\u3053\u3068\u3001\u5b66\u7fd2\u65b9\u6cd5\u3082\u89e3\u8aac<\/div>\n                    
\u66f4\u65b0\u65e5\uff1a2025\u5e7412\u670826\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            <\/p>\n
\u3068\u3001\u3053\u3053\u307e\u3067\u304cRails\u7d76\u9802\u671f\u306e\u304a\u8a71\u3067\u3059\u3002\u3060\u3044\u305f\u30442010\u304b\u30892013\u5e74\u9803\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n
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\u6d77\u5916\u306e\u30c6\u30c3\u30af\u30e1\u30c7\u30a3\u30a2TechRepublic\u304c\u767a\u8868\u3057\u305f\u300cThe death of Ruby? Developers should learn these languages instead<\/a> \u300d\u3068\u3044\u3046\u8a18\u4e8b\u304c\u5927\u304d\u306a\u8a71\u984c\u3092\u547c\u3073\u307e\u3057\u305f\u3002<\/p>\n
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\u6c42\u4eba\u6570\u304b\u3089\u898b\u308b<\/h3>\n
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\u30d3\u30b8\u30cd\u30b9SNS\u306eWantedly\u3060\u3068\u3001Ruby\u306e\u52df\u96c6\u304c4,307\u4ef6<\/b>\u3002\u4ed6\u306e\u8a00\u8a9e\u3067\u306fJava\u304c4,046\u4ef6\u3001PHP\u304c4,962\u4ef6\u3001Python\u304c3,365\u4ef6\u3068\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n
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\u5e74\u53ce\u304b\u3089\u898b\u308b<\/h3>\n
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\u53c2\u7167\uff1a\u6c42\u4eba\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u300c\u30b9\u30bf\u30f3\u30d0\u30a4\u300d\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u5225\u5e74\u53ce\u30e9\u30f3\u30ad\u30f3\u30b02018<\/a><\/p>\n
2018\u5e74\u7248\u306e\u8cc7\u6599\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u3053\u3061\u3089\u306b\u3088\u308b\u3068\u3001Ruby\u306e\u5e74\u53ce\u306f\u5168\u4f53\u306e7\u4f4d\u3067\u5e74\u53ce\u306e\u4e2d\u592e\u5024\u304c550\u4e07\u5186\u3001\u6700\u5927\u63d0\u793a\u984d\u304c1,200\u4e07\u5186\u3067\u3057\u305f\u3002<\/p>\n
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\n\"\"<\/p>\n
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