{"id":38094,"date":"2024-08-23T09:18:38","date_gmt":"2024-08-23T09:18:38","guid":{"rendered":"https:\/\/www.railscarma.com\/?p=38094"},"modified":"2024-08-23T09:18:42","modified_gmt":"2024-08-23T09:18:42","slug":"%e3%83%ab%e3%83%93%e3%83%bc%e3%81%ae%e3%82%b9%e3%83%97%e3%83%a9%e3%83%83%e3%83%88%e6%bc%94%e7%ae%97%e5%ad%90%e3%82%b7%e3%83%b3%e3%82%b0%e3%83%ab%e3%81%a8%e3%83%80%e3%83%96%e3%83%ab%e3%81%ae%e6%89%8b","status":"publish","type":"post","link":"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/%e3%83%ab%e3%83%93%e3%83%bc%e3%81%ae%e3%82%b9%e3%83%97%e3%83%a9%e3%83%83%e3%83%88%e6%bc%94%e7%ae%97%e5%ad%90%e3%82%b7%e3%83%b3%e3%82%b0%e3%83%ab%e3%81%a8%e3%83%80%e3%83%96%e3%83%ab%e3%81%ae%e6%89%8b\/","title":{"rendered":"Ruby\u30b9\u30d7\u30e9\u30c3\u30c8\u6f14\u7b97\u5b50\u30ac\u30a4\u30c9\uff1a\u30b7\u30f3\u30b0\u30eb\u3068\u30c0\u30d6\u30eb"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"38094\" class=\"elementor elementor-38094\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-21070e0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"21070e0\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-efddacc\" data-id=\"efddacc\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-211d7289 elementor-widget elementor-widget-text-editor\" data-id=\"211d7289\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><\/p>\n<h2><strong>\u5c0e\u5165<\/strong><\/h2>\n<p><\/p>\n<p><\/p>\n<p>Ruby \u306e splat \u6f14\u7b97\u5b50 (<code>*<\/code>) \u306f\u3001\u30b3\u30fc\u30c9\u3092\u5927\u5e45\u306b\u7c21\u7565\u5316\u3067\u304d\u308b\u5f37\u529b\u3067\u591a\u7528\u9014\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u914d\u5217\u3084\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u3001\u3042\u308b\u3044\u306f\u30cf\u30c3\u30b7\u30e5\u3092\u6271\u3046\u5834\u5408\u3067\u3082\u3001 splat \u6f14\u7b97\u5b50\u306f\u53ef\u5909\u9577\u306e\u5f15\u6570\u3092\u7ba1\u7406\u3057\u305f\u308a\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u7c21\u5358\u306b\u5909\u63db\u3057\u305f\u308a\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u5358\u4e00\u306e\u30b9\u30d7\u30e9\u30c3\u30c8 (<code>*<\/code>)\u3068\u30c0\u30d6\u30eb\u30b9\u30d7\u30e9\u30c3\u30c8(<code>**<\/code>)\u6f14\u7b97\u5b50\u306e\u4f7f\u7528\u4f8b\u3092\u793a\u3057\u3001\u5b9f\u8df5\u7684\u306a\u4f8b\u3092\u63d0\u4f9b\u3059\u308b\u3002<\/p>\n<p><\/p>\n<p><\/p>\n<h2><strong>1.\u30b7\u30f3\u30b0\u30eb\u30b9\u30d7\u30e9\u30c3\u30c8\u30aa\u30da\u30ec\u30fc\u30bf (<code>*<\/code>)<\/strong><\/h2>\n<p><\/p>\n<p><\/p>\n<p>\u5358\u4e00\u306e\u30b9\u30d7\u30e9\u30c3\u30c8\u6f14\u7b97\u5b50(<code>*<\/code>\u30e1\u30bd\u30c3\u30c9\u5185\u3067\u53ef\u5909\u9577\u306e\u5f15\u6570\u3092\u6271\u3046\u3053\u3068\u3068\u3001\u914d\u5217\u3092\u5f15\u6570\u306e\u30ea\u30b9\u30c8\u306b\u5c55\u958b\u3059\u308b\u3053\u3068\u3067\u3042\u308b\u3002\u3053\u308c\u3089\u306e\u4f7f\u7528\u4f8b\u3092\u8aac\u660e\u3057\u3088\u3046\u3002<\/p>\n<p><\/p>\n<p><\/p>\n<p><strong>1.1.\u30e1\u30bd\u30c3\u30c9\u306b\u304a\u3051\u308b\u53ef\u5909\u9577\u5f15\u6570<\/strong><\/p>\n<p><\/p>\n<p><\/p>\n<p>Ruby\u3067\u306f\u3001splat\u6f14\u7b97\u5b50\u3092\u4f7f\u3063\u3066\u30e1\u30bd\u30c3\u30c9\u306b\u4efb\u610f\u306e\u6570\u306e\u5f15\u6570\u3092\u6e21\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30e1\u30bd\u30c3\u30c9\u306b\u6e21\u3055\u308c\u308b\u5f15\u6570\u306e\u6570\u304c\u308f\u304b\u3089\u306a\u3044\u5834\u5408\u306b\u7279\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\n<pre style=\"font-size: 16px; font-style: normal; font-weight: 400;\"><br>def greet(*names)\n names.each { |name| puts \"\u3053\u3093\u306b\u3061\u306f\u3001#{name}!\"}\n\u7d42\u4e86\ngreet(\"Alice\", \"Bob\", \"Charlie\")<\/pre>\n<p><\/p>\n<p><\/p>\n<p><strong>\u8aac\u660e\u3059\u308b\uff1a<\/strong><\/p>\n<p><\/p>\n<p><\/p>\n<ul class=\"wp-block-list\"><p><\/p>\n<li>\u306b\u3064\u3044\u3066 <code>\u58f0\u3092\u304b\u3051\u308b<\/code> \u30e1\u30bd\u30c3\u30c9\u306f\u3001\u30b9\u30d7\u30e9\u30c3\u30c8\u6f14\u7b97\u5b50\u306e\u304a\u304b\u3052\u3067\u3001\u4efb\u610f\u306e\u6570\u306e\u5f15\u6570\u3092\u53d7\u3051\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/li>\n<p><\/p>\n<p><\/p>\n<li>\u306b\u3064\u3044\u3066 <code>\u540d\u524d<\/code> \u30d1\u30e9\u30e1\u30fc\u30bf\u306f\u914d\u5217\u306b\u5909\u63db\u3055\u308c\u3001\u305d\u308c\u3092\u53cd\u5fa9\u51e6\u7406\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/li>\n<p><\/p>\n<\/ul>\n<p><\/p>\n<p><\/p>\n<p><strong>1.2.\u30a2\u30ec\u30a4\u306e\u62e1\u5f35<\/strong><\/p>\n<p><\/p>\n<p><\/p>\n<p>splat \u6f14\u7b97\u5b50\u306f\u3001\u914d\u5217\u3092\u500b\u3005\u306e\u8981\u7d20\u306b\u5c55\u958b\u3059\u308b\u306e\u306b\u3082\u4f7f\u3048\u308b\u3002\u3053\u308c\u306f\u3001\u914d\u5217\u306e\u8981\u7d20\u3092\u500b\u5225\u306e\u5f15\u6570\u3068\u3057\u3066\u30e1\u30bd\u30c3\u30c9\u306b\u6e21\u3057\u305f\u3044\u5834\u5408\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\n<p><\/p>\n<p><\/p>\n<pre><code> <\/code>def sum(a, b, c)\n  a + b + c\n\u7d42\u4e86<br>numbers = [1, 2, 3\uff3d\nputs sum(*numbers) <\/pre>\n<p><\/p>\n<p><\/p>\n<p><strong>\u8aac\u660e\u3059\u308b\uff1a<\/strong><\/p>\n<p><\/p>\n<p><\/p>\n<ul class=\"wp-block-list\"><p><\/p>\n<li>\u306b\u3064\u3044\u3066 <code>*\u6570\u5b57<\/code> \u306f\u914d\u5217\u3092\u62e1\u5927\u3059\u308b <code>[1, 2, 3]<\/code> \u500b\u3005\u306e\u5f15\u6570\u306b <code>1, 2, 3<\/code>.<\/li>\n<p><\/p>\n<\/ul>\n<p><\/p>\n<p><\/p>\n<p><strong>1.3.\u914d\u5217\u306e\u7d44\u307f\u5408\u308f\u305b<\/strong><\/p>\n<p><\/p>\n<p><\/p>\n<p>splat \u6f14\u7b97\u5b50\u306f\u3001\u914d\u5217\u3092\u7c21\u6f54\u306b\u9023\u7d50\u3059\u308b\u306e\u306b\u4f7f\u3048\u308b\u3002<\/p>\n<pre>arr1 = [1, 2, 3\uff3d\narr2 = [4, 5, 6\uff3d\n\u30b3\u30f3\u30d0\u30a4\u30f3\u30c9 = [*arr1, *arr2\uff3d\nputs combined.inspect<br><\/pre>\n<p><\/p>\n<p><\/p>\n<p><strong>\u8aac\u660e\u3059\u308b\uff1a<\/strong><\/p>\n<p><\/p>\n<p><\/p>\n<ul class=\"wp-block-list\"><p><\/p>\n<li>\u306b\u3064\u3044\u3066 <code>*arr1<\/code> \u305d\u3057\u3066 <code>*arr2<\/code> \u306e\u8981\u7d20\u3092\u65b0\u3057\u3044\u914d\u5217\u306b\u5c55\u958b\u3059\u308b\u3002 <code>[1, 2, 3, 4, 5, 6]<\/code>.<\/li>\n<\/ul>\n<p><\/p>\n<p><\/p>\n<h2><strong>2.\u30c0\u30d6\u30eb\u30b9\u30d7\u30e9\u30c3\u30c8\u30aa\u30da\u30ec\u30fc\u30bf\u30fc\u3092\u63a2\u308b<code>**<\/code>)<\/strong><\/h2>\n<p><\/p>\n<p><\/p>\n<p>\u30c0\u30d6\u30eb\u30b9\u30d7\u30e9\u30c3\u30c8\u6f14\u7b97\u5b50(<code>**<\/code>) \u306f\u3001\u30e1\u30bd\u30c3\u30c9\u3067\u30ad\u30fc\u30ef\u30fc\u30c9\u5f15\u6570\u3092\u6271\u3046\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4efb\u610f\u306e\u6570\u306e\u30ad\u30fc\u30ef\u30fc\u30c9\u5f15\u6570\u3092\u30e1\u30bd\u30c3\u30c9\u306b\u6e21\u3059\u3053\u3068\u304c\u3067\u304d\u3001\u305d\u308c\u3089\u306e\u30ad\u30fc\u30ef\u30fc\u30c9\u5f15\u6570\u3092\u8868\u3059\u30cf\u30c3\u30b7\u30e5\u3092\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><\/p>\n<p><\/p>\n<p><strong>2.1.\u30ad\u30fc\u30ef\u30fc\u30c9\u5f15\u6570\u306e\u51e6\u7406<\/strong><\/p>\n<p><\/p>\n<p><\/p>\n<p>\u30e1\u30bd\u30c3\u30c9\u3092\u5b9a\u7fa9\u3059\u308b\u3068\u304d\u3001double splat \u6f14\u7b97\u5b50\u3092\u4f7f\u3046\u3068\u3001\u30e1\u30bd\u30c3\u30c9\u306b\u6e21\u3055\u308c\u308b\u3059\u3079\u3066\u306e\u30ad\u30fc\u30ef\u30fc\u30c9\u5f15\u6570\u3092\u53d6\u308a\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre style=\"box-sizing: border-box; border: 0px; margin: 0px 0px 1.6em; outline: 0px; padding: 1.6em; vertical-align: baseline; overflow: auto; background: rgb(238, 238, 238); max-width: 100%; orphans: 2; text-align: start; text-indent: 0px; widows: 2; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\">def print_details(**details)\n \u8a73\u7d30.each do |key, value| <br>  puts \"#{key.capitalize}\uff1a#{\u5024}\" <br> \u7d42\u308f\u308a <br>\u7d42\u4e86\nprint_details(name: \"Alice\", age: 30, city: \"New York\")<\/pre>\n<p><\/p>\n<p><\/p>\n<p><strong>\u8aac\u660e\u3059\u308b\uff1a<\/strong><\/p>\n<p><\/p>\n<p><\/p>\n<ul class=\"wp-block-list\"><p><\/p>\n<li>\u306b\u3064\u3044\u3066 <code>\u30d7\u30ea\u30f3\u30c8\u8a73\u7d30<\/code> \u30e1\u30bd\u30c3\u30c9\u306f\u3001\u30ad\u30fc\u30ef\u30fc\u30c9\u5f15\u6570\u3092\u3044\u304f\u3064\u3067\u3082\u53d7\u3051\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 <code>\u8a73\u7d30<\/code>.<\/li>\n<p><\/p>\n<\/ul>\n<p><\/p>\n<p><\/p>\n<p><strong>2.2.\u30ad\u30fc\u30ef\u30fc\u30c9\u5f15\u6570\u3068\u3057\u3066\u30cf\u30c3\u30b7\u30e5\u3092\u6e21\u3059<\/strong><\/p>\n<p><\/p>\n<p><\/p>\n<p>\u30c0\u30d6\u30eb\u30b9\u30d7\u30e9\u30c3\u30c8\u30aa\u30da\u30ec\u30fc\u30bf\u306f\u3001\u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u6642\u306b\u30cf\u30c3\u30b7\u30e5\u3092\u30ad\u30fc\u30ef\u30fc\u30c9\u5f15\u6570\u306b\u5c55\u958b\u3059\u308b\u305f\u3081\u306b\u3082\u4f7f\u7528\u3067\u304d\u308b\u3002<\/p>\n<p><\/p>\n<p><\/p>\n<p>\u30eb\u30d3\u30fc<\/p>\n<p><\/p>\n<p><\/p>\n<pre>def print_person(\u540d\u524d:, \u5e74\u9f62:, \u90fd\u5e02:)\n puts \"\u540d\u524d\uff1a#{name}, Age: #{age}, City: #{city}\" \"\n\u7d42\u4e86\nperson = { name: \"Bob\", age: 25, city\uff1a\"\u30b7\u30ab\u30b4\" }.\nprint_person(**person)<\/pre>\n<p><\/p>\n<p><\/p>\n<p><strong>\u8aac\u660e\u3059\u308b\uff1a<\/strong><\/p>\n<p><\/p>\n<p><\/p>\n<ul class=\"wp-block-list\"><p><\/p>\n<li>\u306b\u3064\u3044\u3066 <code>**\u4eba<\/code> \u30cf\u30c3\u30b7\u30e5\u3092\u30ad\u30fc\u30ef\u30fc\u30c9\u5f15\u6570\u306b\u5c55\u958b\u3059\u308b <code>name: \"\u30dc\u30d6\"<\/code>, <code>\u6b7325<\/code>\u3001 \u305d\u3057\u3066 <code>\u90fd\u5e02\"\u30b7\u30ab\u30b4\"<\/code>.<\/li>\n<p><\/p>\n<\/ul>\n<p><\/p>\n<p><\/p>\n<p><strong>2.3.\u30ad\u30fc\u30ef\u30fc\u30c9\u5f15\u6570\u3068\u30cf\u30c3\u30b7\u30e5\u306e\u7d44\u307f\u5408\u308f\u305b<\/strong><\/p>\n<p><\/p>\n<p><\/p>\n<p>\u30c0\u30d6\u30eb\u30b9\u30d7\u30e9\u30c3\u30c8\u6f14\u7b97\u5b50\u3092\u4f7f\u3048\u3070\u3001\u660e\u793a\u7684\u306a\u30ad\u30fc\u30ef\u30fc\u30c9\u5f15\u6570\u3068\u8ffd\u52a0\u30ad\u30fc\u30ef\u30fc\u30c9\u5f15\u6570\u306e\u30cf\u30c3\u30b7\u30e5\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n<p><\/p>\n<p><\/p>\n<pre>def create_user(name:, **\u30aa\u30d7\u30b7\u30e7\u30f3)\n user = { name: name }.merge(options)\n puts user.inspect\n\u7d42\u4e86\ncreate_user(name: \"Eve\", age: 28, email: \"eve@example.com\")<\/pre>\n<p><\/p>\n<p><\/p>\n<p><strong style=\"font-size: 16px;\">\u8aac\u660e\u3059\u308b\uff1a<\/strong><br><\/p>\n<p><\/p>\n<p><\/p>\n<ul class=\"wp-block-list\"><p><\/p>\n<li>\u306b\u3064\u3044\u3066 <code>\u30e6\u30fc\u30b6\u30fc\u4f5c\u6210<\/code> \u30e1\u30bd\u30c3\u30c9\u306f\u3001\u5fc5\u9808\u306e <code>\u540d\u524d<\/code> \u30ad\u30fc\u30ef\u30fc\u30c9\u5f15\u6570\u304a\u3088\u3073\u4efb\u610f\u306e\u6570\u306e\u8ffd\u52a0\u30aa\u30d7\u30b7\u30e7\u30f3\u3002<\/li>\n<p><\/p>\n<p><\/p>\n<li>\u306b\u3064\u3044\u3066 <code>\u30aa\u30d7\u30b7\u30e7\u30f3<\/code> \u30cf\u30c3\u30b7\u30e5\u306f <code>\u540d\u524d<\/code> \u3067\u3001\u5b8c\u5168\u306a\u30e6\u30fc\u30b6\u30fc\u30cf\u30c3\u30b7\u30e5\u3092\u5f62\u6210\u3059\u308b\u3002<\/li>\n<p><\/p>\n<\/ul>\n<p><\/p>\n<p><\/p>\n<hr>\n<p><\/p>\n<p><\/p>\n<h2><strong>3.\u30b7\u30f3\u30b0\u30eb\u30b9\u30d7\u30e9\u30c3\u30c8\u30aa\u30da\u30ec\u30fc\u30bf\u30fc\u3068\u30c0\u30d6\u30eb\u30b9\u30d7\u30e9\u30c3\u30c8\u30aa\u30da\u30ec\u30fc\u30bf\u30fc\u306e\u7d44\u307f\u5408\u308f\u305b<\/strong><\/h2>\n<p><\/p>\n<p><\/p>\n<p>\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u3001\u4f4d\u7f6e\u5f15\u6570\u3068\u30ad\u30fc\u30ef\u30fc\u30c9\u5f15\u6570\u306e\u4e21\u65b9\u3092\u6271\u3046\u305f\u3081\u306b\u3001\u30b7\u30f3\u30b0\u30eb\u3068\u30c0\u30d6\u30eb\u306e\u30b9\u30d7\u30e9\u30c3\u30c8\u6f14\u7b97\u5b50\u3092\u3072\u3068\u3064\u306e\u30e1\u30bd\u30c3\u30c9\u306b\u307e\u3068\u3081\u308b\u5fc5\u8981\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u3002<\/p>\n<p><\/p>\n<p><\/p>\n<pre>def configure(*settings, **options)\n puts \"\u8a2d\u5b9a\uff1a#{settings.inspect}\"\n puts \"\u30aa\u30d7\u30b7\u30e7\u30f3\uff1a#{\u30aa\u30d7\u30b7\u30e7\u30f3.inspect}\"\n\u7d42\u4e86\nconfigure(\"verbose\", \"debug\", timeout: 300, retries: 5)<\/pre>\n<p><\/p>\n<p><\/p>\n<p><strong style=\"font-size: 16px;\">\u8aac\u660e\u3059\u308b\uff1a<\/strong><br><\/p>\n<p><\/p>\n<p><\/p>\n<ul class=\"wp-block-list\"><p><\/p>\n<li>\u306b\u3064\u3044\u3066 <code>\u69cb\u6210\u3001\u8a2d\u5b9a<\/code> \u30e1\u30bd\u30c3\u30c9\u306f\u3001\u4efb\u610f\u306e\u6570\u306e\u4f4d\u7f6e\u5f15\u6570 (<code>\u8a2d\u5b9a<\/code>)\u3068\u30ad\u30fc\u30ef\u30fc\u30c9\u5f15\u6570(<code>\u30aa\u30d7\u30b7\u30e7\u30f3<\/code>).<\/li>\n<p><\/p>\n<p><\/p>\n<li>\u3053\u308c\u306b\u3088\u308a\u3001\u3055\u307e\u3056\u307e\u306a\u5165\u529b\u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u67d4\u8edf\u306a\u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u304c\u53ef\u80fd\u306b\u306a\u308b\u3002<\/li>\n<p><\/p>\n<\/ul>\n<p><\/p>\n<p><\/p>\n<hr>\n<p><\/p>\n<p><\/p>\n<h2><strong>\u7d50\u8ad6<\/strong><\/h2>\n<p><\/p>\n<p><\/p>\n<p>\u30b7\u30f3\u30b0\u30eb(<code>*<\/code>)\u3068\u30c0\u30d6\u30eb(<code>**<\/code>)\u30b9\u30d7\u30e9\u30c3\u30c8\u6f14\u7b97\u5b50\u306f\u3001\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u3092\u7ba1\u7406\u3057\u305f\u308a\u3001\u914d\u5217\u3084\u30cf\u30c3\u30b7\u30e5\u3092\u6271\u3063\u305f\u308a\u3059\u308b\u305f\u3081\u306b\u3001Ruby\u3067\u306f\u6b20\u304b\u305b\u306a\u3044\u30c4\u30fc\u30eb\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u6f14\u7b97\u5b50\u3092\u4f7f\u3044\u3053\u306a\u3059\u3053\u3068\u3067\u3001\u3088\u308a\u67d4\u8edf\u3067\u7c21\u6f54\u3067\u8aad\u307f\u3084\u3059\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u914d\u5217\u306e\u5c55\u958b\u3001\u53ef\u5909\u9577\u5f15\u6570\u306e\u51e6\u7406\u3001\u30ad\u30fc\u30ef\u30fc\u30c9\u5f15\u6570\u306e\u7ba1\u7406\u306a\u3069\u3001splat \u6f14\u7b97\u5b50\u3092\u4f7f\u3046\u3053\u3068\u3067 <a href=\"https:\/\/www.railscarma.com\/ja\/%e3%82%ab%e3%82%b9%e3%82%bf%e3%83%a0%e3%83%ac%e3%83%bc%e3%83%ab%e3%82%a2%e3%83%97%e3%83%aa%e3%82%b1%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3%e9%96%8b%e7%99%ba\/\">Ruby\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/a> \u3088\u308a\u30d1\u30ef\u30d5\u30eb\u3067\u8868\u73fe\u529b\u304c\u8c4a\u304b\u306b\u306a\u308b\u3002<\/p>\n<p><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t  <div class=\"related-post slider\">\r\n        <div class=\"headline\">\u95a2\u9023\u8a18\u4e8b<\/div>\r\n    <div class=\"post-list owl-carousel\">\r\n\r\n            <div class=\"item\">\r\n            <div class=\"thumb post_thumb\">\r\n    <a  title=\"Medical App Development: A Practical Guide (2027)\" 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A Complete Guide for 2026\" href=\"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/what-is-angularjs-mobile-app-development\/?related_post_from=41580\">\r\n\r\n      <img decoding=\"async\" width=\"800\" height=\"300\" src=\"https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/10\/What-Is-AngularJS-Mobile-App-Development.png\" class=\"attachment-full size-full wp-post-image\" alt=\"AngularJS Mobile App Development\" srcset=\"https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/10\/What-Is-AngularJS-Mobile-App-Development.png 800w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/10\/What-Is-AngularJS-Mobile-App-Development-300x113.png 300w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/10\/What-Is-AngularJS-Mobile-App-Development-768x288.png 768w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/10\/What-Is-AngularJS-Mobile-App-Development-18x7.png 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\r\n\r\n    <\/a>\r\n  <\/div>\r\n\r\n  <a class=\"title post_title\"  title=\"What Is AngularJS Mobile App Development? A Complete Guide for 2026\" href=\"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/what-is-angularjs-mobile-app-development\/?related_post_from=41580\">\r\n        What Is AngularJS Mobile App Development? 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decoding=\"async\" width=\"800\" height=\"300\" src=\"https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/10\/Generative-AI-Development-with-Ruby-on-Rails.png\" class=\"attachment-full size-full wp-post-image\" alt=\"Generative AI Development with Ruby on Rails\" srcset=\"https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/10\/Generative-AI-Development-with-Ruby-on-Rails.png 800w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/10\/Generative-AI-Development-with-Ruby-on-Rails-300x113.png 300w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/10\/Generative-AI-Development-with-Ruby-on-Rails-768x288.png 768w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/10\/Generative-AI-Development-with-Ruby-on-Rails-18x7.png 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\r\n\r\n    <\/a>\r\n  <\/div>\r\n\r\n  <a class=\"title post_title\"  title=\"Generative AI Development with Ruby on Rails\" 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true,\r\n                                nav: true,\r\n            navSpeed: 1000,\r\n            navText: ['<i class=\"fas fa-chevron-left\"><\/i>', '<i class=\"fas fa-chevron-right\"><\/i>'],\r\n                                dots: false,\r\n            dotsSpeed: 1200,\r\n                                                    rtl: false,\r\n          \r\n        });\r\n      });\r\n    <\/script>\r\n  <\/div>","protected":false},"excerpt":{"rendered":"<p>Introduction The Ruby splat operator (*) is a powerful and versatile tool that can significantly simplify your code. Whether you&#8217;re dealing with arrays, method arguments, or even hashes, the splat operator helps manage variable-length arguments and transform data structures with ease. In this guide, we&#8217;ll explore the single splat (*) and double splat (**) operators, demonstrating their use cases and providing practical examples to help you master them. 1. Understanding the Single Splat Operator (*) The single splat operator (*) in Ruby is used primarily for two purposes: handling variable-length arguments in methods and expanding arrays into a list of arguments. Let\u2019s break down these use cases. 1.1. Variable-Length Arguments &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/generative-ai-development-with-ruby-on-rails\/\"> <span class=\"screen-reader-text\">Generative AI Development with Ruby on Rails<\/span> \u3082\u3063\u3068\u8aad\u3080 \"<\/a><\/p>","protected":false},"author":5,"featured_media":38106,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1224],"tags":[],"class_list":["post-38094","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Guide to the Ruby Splat Operator: Single and Double - RailsCarma<\/title>\n<meta name=\"description\" content=\"Introduction The Ruby splat operator (*) is a powerful and versatile tool that\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.railscarma.com\/ja\/\u30d6\u30ed\u30b0\/\u30eb\u30d3\u30fc\u306e\u30b9\u30d7\u30e9\u30c3\u30c8\u6f14\u7b97\u5b50\u30b7\u30f3\u30b0\u30eb\u3068\u30c0\u30d6\u30eb\u306e\u624b\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Guide to the Ruby Splat Operator: Single and Double - 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