{"id":5477,"date":"2020-05-30T11:01:51","date_gmt":"2020-05-30T02:01:51","guid":{"rendered":"https:\/\/yumishin.com\/?p=5477"},"modified":"2020-05-30T11:01:51","modified_gmt":"2020-05-30T02:01:51","slug":"ruby-hash","status":"publish","type":"post","link":"https:\/\/yumishin.com\/?p=5477","title":{"rendered":"Ruby\u306eHash\u30af\u30e9\u30b9\u306e\u4f7f\u3044\u65b9\u3068\u7279\u5fb4"},"content":{"rendered":"

\u3069\u3046\u3082\u3001Ruby\u3092\u3084\u3063\u3066\u3044\u308b\u3082\u306e\u3067\u3059\u3002\u7a81\u7136\u3067\u3059\u304cHash\u3063\u3066\u3044\u307e\u3044\u3061\u3088\u304f\u308f\u304b\u3089\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f\u305d\u3053\u3067\u4eca\u56de\u306fRuby\u306eHash\u306b\u3064\u3044\u3066\u7c21\u5358\u306b\u307e\u3068\u3081\u3066\u304a\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n

Ruby\u306e\u30cf\u30c3\u30b7\u30e5\u30af\u30e9\u30b9\u306e\u4f7f\u3044\u65b9\u3068\u7279\u5fb4<\/h2>\n

\u30cf\u30c3\u30b7\u30e5\u3063\u3066\u4e00\u4f53\u306a\u3093\u305e\u3084<\/h3>\n

\u30cf\u30c3\u30b7\u30e5\u3068\u306f\u300c\u30ad\u30fc\u3068\u5024\u3067\u30c7\u30fc\u30bf\u306e\u96c6\u307e\u308a\u3092\u8868\u73fe\u3059\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u300d\u3067\u3059\uff01\u3069\u30fc\u3093\uff01<\/p>\n

\u3068\u306b\u304b\u304f\u30cf\u30c3\u30b7\u30e5\u306b\u306f\u30ad\u30fc\u3068\u5024\u304c\u3042\u3063\u3066\u3001\u305d\u308c\u3089\u306f\u30bb\u30c3\u30c8\u306b\u306a\u3063\u3066\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u306d\u3002\u4f8b\u3048\u3070\u30ad\u30fc\u304cmelon\u3067\u5024\u304c\u30e1\u30ed\u30f3\u307f\u305f\u3044\u306a\u611f\u3058\u3067\u3059\u304b\u306d\u3002<\/p>\n

\u30ad\u30fc\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u5024\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u753b\u50cf\u306a\u3089100\u5186\u304c\u30ad\u30fc\u3068\u306a\u3063\u3066\u3044\u3066\u3001\u5024\u304c\u30d0\u30ca\u30ca\u307f\u305f\u3044\u306a\u611f\u3058\u3067\u3059\u306d\u3002<\/p>\n

\u3053\u3046\u3084\u3063\u3066\u30bb\u30c3\u30c8\u306b\u3057\u3066\u6271\u3044\u305f\u3044\u3068\u304d\u306bHash\u304c\u6d3b\u8e8d\u3057\u307e\u3059\u3002<\/p>\n

\"\"<\/p>\n

\u30cf\u30c3\u30b7\u30e5\u306e\u4f5c\u308a\u65b9<\/h3>\n

\u30cf\u30c3\u30b7\u30e5\u306f\u4e3b\u306b2\u3064\u306e\u4f5c\u308a\u65b9\u304c\u3042\u308a\u307e\u3059\u3002\u7d30\u304b\u3044\u306e\u306f\u4ed6\u306b\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u3068\u308a\u3042\u3048\u305a2\u3064\u899a\u3048\u3066\u304a\u3051\u3070\u5927\u4e08\u592b\u3067\u3059\u3002<\/p>\n

    \n
  1. { }\u3092\u4f7f\u3046\u65b9\u6cd5<\/li>\n
  2. Hash.new\u3092\u4f7f\u3046\u65b9\u6cd5<\/li>\n<\/ol>\n

    { }\u3092\u4f7f\u3046\u65b9\u6cd5\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3084\u3063\u3066\u3042\u3052\u307e\u3059\u3002<\/p>\n

    <\/i> \u30b3\u30fc\u30c9<\/span><\/p>\n
    h1 = { \"a\" => \"b\" }\u3000# h2 = {a: b}\u3067\u3082OK<\/code><\/pre>\n<\/div>\n
    Hash.new\u3092\u4f7f\u3046\u5834\u5408\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n
    <\/i> \u30b3\u30fc\u30c9<\/span><\/p>\n
    h1 = Hash.new\nputs h1 #=> {}<\/code><\/pre>\n<\/div>\n
    Hash.new\u3067\u5024\u3092\u53d6\u308a\u51fa\u3059\u3001\u8a2d\u5b9a\u3059\u308b<\/h3>\n
    Hash.new\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30ad\u30fc\u3068\u5024\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
    <\/i> \u30b3\u30fc\u30c9<\/span><\/p>\n
    h1 = Hash.new\nh1[\"R\"] = \"Ruby\"\nputs h1[\"R\"] #=> \"Ruby\"\n<\/code><\/pre>\n<\/div>\n
    \u540c\u3058\u3088\u3046\u306a\u3053\u3068\u3092store\u30e1\u30bd\u30c3\u30c9\u3068fetch\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n
    <\/i> \u30b3\u30fc\u30c9<\/span><\/p>\n
    h1 = Hash.new\nh1.store(\"R\") = \"Ruby\"\nputs h1.fetch(\"R\") #=> \"Ruby\"\n<\/code><\/pre>\n<\/div>\n
    \u30cf\u30c3\u30b7\u30e5\u4f5c\u6210\u6642\u306b\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u8a2d\u5b9a\u3059\u308b<\/h4>\n
    Hash.new\u306b\u5f15\u6570\u3092\u4e0e\u3048\u308b\u3068\u3001\u305d\u306e\u5024\u304c\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3068\u3057\u3066\u4f7f\u308f\u308c\u308b\u306e\u3067\u3001\u899a\u3048\u3066\u304a\u304f\u3068\u4fbf\u5229\u3067\u3059\u3002<\/p>\n
    <\/i> \u30b3\u30fc\u30c9<\/span><\/p>\n
    h = Hash.new(1)\nh[\"a\"] = 10\nputs h[\"a\"] #=> 10\nputs h[\"b\"] #=> 1\nputs h[\"c\"] #=> 1<\/code><\/pre>\n<\/div>\n
    \u30cf\u30c3\u30b7\u30e5\u306b\u30ad\u30fc\u3084\u5024\u304c\u3042\u308b\u304b\u8abf\u3079\u308b<\/h3>\n
    \u4ee5\u4e0b\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u3088\u304f\u51fa\u3066\u304f\u308b\u306e\u3067\u899a\u3048\u3066\u304a\u304f\u3068\u4fbf\u5229\u3067\u3059\u3002<\/p>\n
    \n
    Hash\u304c\u3042\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30ad\u30fc\u3068\u3057\u3066\u6301\u3063\u3066\u3044\u308b\u304b\u8abf\u3079\u308b\u30e1\u30bd\u30c3\u30c9<\/strong><\/p>\n
    h.key?<\/p>\n
    h.has_key?<\/p>\n
    h.include?<\/p>\n
    h.member?<\/p>\n
    Hash\u304c\u3042\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5024\u3068\u3057\u3066\u6301\u3063\u3066\u3044\u308b\u304b\u8abf\u3079\u308b\u30e1\u30bd\u30c3\u30c9<\/strong><\/p>\n
    h.value?<\/p>\n
    h.has_value?<\/p>\n
    \u30ad\u30fc\u3068\u5024\u3092\u524a\u9664\u3059\u308b\u30e1\u30bd\u30c3\u30c9<\/strong><\/p>\n
    h.deleate<\/p>\n
    \u30cf\u30c3\u30b7\u30e5\u3092\u521d\u671f\u5316\u3059\u308b\u30e1\u30bd\u30c3\u30c9<\/strong><\/p>\n
    h.clear<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
    \u3069\u3046\u3082\u3001Ruby\u3092\u3084\u3063\u3066\u3044\u308b\u3082\u306e\u3067\u3059\u3002\u7a81\u7136\u3067\u3059\u304cHash\u3063\u3066\u3044\u307e\u3044\u3061\u3088\u304f\u308f\u304b\u3089\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f\u305d\u3053\u3067\u4eca\u56de\u306fRuby\u306eHash\u306b\u3064\u3044\u3066\u7c21\u5358\u306b\u307e\u3068\u3081\u3066\u304a\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002 Ruby\u306e\u30cf\u30c3\u30b7\u30e5\u30af\u30e9\u30b9\u306e\u4f7f\u3044\u65b9\u3068\u7279\u5fb4 \u30cf\u30c3\u30b7\u30e5\u3063 … <\/p>\n","protected":false},"author":1,"featured_media":5478,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[272],"tags":[],"class_list":{"0":"post-5477","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-programing","8":"entry"},"_links":{"self":[{"href":"https:\/\/yumishin.com\/index.php?rest_route=\/wp\/v2\/posts\/5477","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yumishin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yumishin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yumishin.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yumishin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5477"}],"version-history":[{"count":3,"href":"https:\/\/yumishin.com\/index.php?rest_route=\/wp\/v2\/posts\/5477\/revisions"}],"predecessor-version":[{"id":5482,"href":"https:\/\/yumishin.com\/index.php?rest_route=\/wp\/v2\/posts\/5477\/revisions\/5482"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yumishin.com\/index.php?rest_route=\/wp\/v2\/media\/5478"}],"wp:attachment":[{"href":"https:\/\/yumishin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5477"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yumishin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5477"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yumishin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}