{"id":8708,"date":"2018-12-06T21:56:14","date_gmt":"2018-12-06T12:56:14","guid":{"rendered":"http:\/\/r-dimension.xsrv.jp\/classes_j\/?p=8708"},"modified":"2018-12-07T14:39:49","modified_gmt":"2018-12-07T05:39:49","slug":"key_value","status":"publish","type":"post","link":"https:\/\/r-dimension.xsrv.jp\/classes_j\/key_value\/","title":{"rendered":"d3\u306b\u304a\u3051\u308b\u9023\u60f3\u914d\u5217\uff08key, value\uff09"},"content":{"rendered":"

\u9023\u60f3\u914d\u5217<\/h1>\n

d3\u306e\u914d\u5217\u3092\u5b9a\u7fa9\u3059\u308b\u6642\u306b\u3001\u9023\u60f3\u914d\u5217\u306b\u3059\u308b\u3068\u4fbf\u5229\u306a\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u4e00\u822c\u7684\u306b\u914d\u5217\u306e\u5404\u8981\u7d20\u306e\u5024\u3092\u53c2\u7167\u3059\u308b\u306b\u306f\u3001\u914d\u5217\u540d[\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u756a\u53f7]\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u756a\u53f7\u3092\u6307\u5b9a\u3057\u307e\u3059\uff08\u4f8b\uff1aarray[0]\uff09\u3002\u3057\u304b\u3057\u3001\u4f8b\u3048\u3070\u679c\u7269\u306e\u540d\u524d\u3068\u5024\u6bb5\u3068\u3044\u3063\u305f\u3088\u3046\u306b\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u756a\u53f7\u306e\u4ee3\u308f\u308a\u306b\u6587\u5b57\u5217\u304c\u4f7f\u3048\u308b\u3068\u3001\u914d\u5217\u3092\u8f9e\u66f8\u306e\u3088\u3046\u306b\u4f7f\u3046\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u90e8\u5206\u306b\u6587\u5b57\u5217\uff08\u30ad\u30fc\uff09\u3092\u8a2d\u5b9a\u3057\u3001\u30ad\u30fc\u306b\u5bfe\u5fdc\u3059\u308b\u8981\u7d20\u306e\u30c7\u30fc\u30bf\u3092\u53c2\u7167\u3059\u308b\u5f62\u306e\u914d\u5217\u3092\u300c\u9023\u60f3\u914d\u5217\u300d\u3068\u547c\u3073\u307e\u3059\u3002\u3053\u306e\u9023\u60f3\u914d\u5217\u306f\u3001\u591a\u304f\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304c\u3001\u8a00\u8a9e\u306b\u3088\u3063\u3066\u306f\u30c7\u30a3\u30af\u30b7\u30e7\u30ca\u30ea\u3084\u30cf\u30c3\u30b7\u30e5\u30de\u30c3\u30d7\u306a\u3069\u3068\u3082\u547c\u3070\u308c\u307e\u3059\u3002
\n\u305d\u308c\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u9023\u60f3\u914d\u5217\u3092\u4f7f\u3063\u305f\u30b3\u30fc\u30c9\u3092\u63cf\u3044\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n

\r\nvar dataset = [ { key: \"apple\", value: 150},     \/\/\u9023\u60f3\u914d\u5217\u3092\u4f7f\u3046\r\n                { key: \"orange\", value: 200 },     \/\/key\u3068value\u304c\u30bb\u30c3\u30c8\u306b\u306a\u3063\u3066\u3044\u308b\r\n                { key: \"banana\", value: 100 },\r\n                { key: \"lemon\", value: 120 },\r\n                { key: \"grape\", value: 250 }];\r\n\r\nvar body =  d3.select(\"body\");\r\n\r\nbody.selectAll(\"div\")\r\n   .data(dataset)          \/\/\u30c7\u30fc\u30bf\u306e\u8981\u7d20\u6570\u3092\u30ab\u30a6\u30f3\u30c8\u3057\u62bd\u51fa\r\n   .enter()                \/\/DOM\u8981\u7d20\u304c\u30c7\u30fc\u30bf\u306e\u8981\u7d20\u6570\u3088\u308a\u5c11\u306a\u3044\u5834\u5408\u306f\u65b0\u3057\u304f\u7a7a\u306eDOM\u8981\u7d20\u3092\u4f5c\u308b\u3002\r\n   .append(\"div\")            \/\/\u65b0\u3057\u304f\u4f5c\u3063\u305fDOM\u8981\u7d20\u306b
<\/p>\u3092\u8ffd\u52a0\u3002\r\n   .text(function(d){      \/\/
<\/p>\u306e\u4e2d\u306b<\/text>\u3092\u8ffd\u52a0\u3002\r\n      return \"key\u306f\" + d.key + \"\u3001value\u306f\" + d.value + \"\u306b\u306a\u308a\u307e\u3059\";\r\n   });\r\n<\/pre>\n
\u4ee5\u4e0b\u306e\u7d50\u679c\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\"\"<\/a><\/p>\n
key_value_start<\/a><\/p>\n
\u6b21\u306b\u3001\u9023\u60f3\u914d\u5217\u306ekey\u304cbanana\u306e\u914d\u5217\u3092\u524a\u9664\u3057\u3066\u66f4\u65b0\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n
\r\n\/\/\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068dataset\u3092\u66f4\u65b0\u3057\u3066\u8981\u7d20\u6570\u30924\u306b\u3059\u308b\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\r\nd3.select(\".blue\")\r\n   .on(\"click\", function() {\r\n\r\n      \/\/dataset\u306e\u65b0\u3057\u3044\u5024\r\n      var dataset = [ { key: \"apple\", value: 150},     \/\/\u9023\u60f3\u914d\u5217\u3092\u4f7f\u3046\r\n                      { key: \"orange\", value: 200 },     \/\/key\u3068value\u304c\u30bb\u30c3\u30c8\u306b\u306a\u3063\u3066\u3044\u308b\r\n                      { key: \"lemon\", value: 120 },\r\n                      { key: \"grape\", value: 250 }];\r\n\r\n      var divs = body.selectAll(\"div\") \/\/div\u306eDOM\u8981\u7d20\u304c4\u306b\u306a\u308b\u3088\u3046\u306b\u9078\u629e\u3057\u76f4\u3059\u3002\r\n         .data(dataset)\r\n         .style(\"color\", \"blue\");\r\n   });\r\n<\/pre>\n
\u5f53\u7136\u3067\u3059\u304c\u3001\u8981\u7d20\u6570\u304c4\u306b\u6e1b\u3063\u305f\u306e\u3067\u30015\u3064\u76ee\u306egrape\u306f\u9ed2\u306e\u307e\u307e\u3067\u3059\u3002<\/p>\n
\"\"<\/a><\/p>\n
\u3053\u308c\u306f\u3001\u66f4\u65b0\u3055\u308c\u305fdataset\u306e\u8981\u7d20\u6570\u304c4\u306e\u305f\u3081\u3001\u521d\u3081\u304b\u3089\u6570\u3048\u30664\u3064\u76ee\u307e\u3067\u304c\u9078\u629e\u3055\u308c\u3066\u66f4\u65b0\u3055\u308c\u305f\u304b\u3089\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u524a\u9664\u3057\u305fbanana\u306e\u7b87\u6240\u3060\u3051\u9ed2\u306e\u307e\u307e\u6b8b\u3057\u305f\u3044\u5834\u5408\u3082\u3042\u308b\u3067\u3057\u3087\u3046\u3002\u305d\u306e\u5834\u5408\u306f\u3001data()\u30e1\u30bd\u30c3\u30c9\u306e\u4e2d\u3067d.key\u3092\u4f7f\u3044\u3001\u65e2\u5b58\u306eDOM\u8981\u7d20\u3068\u540c\u3058key\u304c\u3042\u308b\u8981\u7d20\u3060\u3051\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/p>\n
\r\n\/\/\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068dataset\u3092\u66f4\u65b0\u3057\u3066\u8981\u7d20\u6570\u30924\u306b\u3059\u308b\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\r\nd3.select(\".blue\")\r\n   .on(\"click\", function() {\r\n\r\n      \/\/dataset\u306e\u65b0\u3057\u3044\u5024\r\n      var dataset = [ { key: \"apple\", value: 150},     \/\/\u9023\u60f3\u914d\u5217\u3092\u4f7f\u3046\r\n                      { key: \"orange\", value: 200 },     \/\/key\u3068value\u304c\u30bb\u30c3\u30c8\u306b\u306a\u3063\u3066\u3044\u308b\r\n                      { key: \"lemon\", value: 120 },\r\n                      { key: \"grape\", value: 250 }];\r\n\r\n      var divs = body.selectAll(\"div\") \/\/div\u306eDOM\u8981\u7d20\u304c4\u306b\u306a\u308b\u3088\u3046\u306b\u9078\u629e\u3057\u76f4\u3059\u3002\r\n         .data(dataset, function(d){   \/\/\u65e2\u5b58\u306eDOM\u8981\u7d20\u3068key\u304c\u540c\u3058\u3082\u306e\u3060\u3051\u3092\u9078\u629e\u3059\u308b\u3002\r\n            return d.key;\r\n         })\r\n         .style(\"color\", \"blue\");\r\n   });\r\n<\/pre>\n
banana\u306e\u884c\u3060\u3051\u304c\u66f4\u65b0\u3055\u308c\u305a\u9ed2\u306e\u307e\u307e\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n
\"\"<\/a><\/p>\n
key_value<\/a><\/p>\n
\u914d\u5217\u306e\u8ffd\u52a0\u3001\u524a\u9664<\/h1>\n
\u914d\u5217\u306e\u672b\u5c3e\u3078\u306e\u8ffd\u52a0\u306fpush\u3067\u3059\u3002<\/p>\n
\r\narray.push({key: \"tomato\", value: 100});\r\n<\/pre>\n
\u914d\u5217\u306e\u5148\u982d\u306e\u8981\u7d20\u306e\u524a\u9664\u306fshift()\u3067\u3001\u672b\u5c3e\u306e\u8981\u7d20\u306e\u524a\u9664\u306fpop()\u3067\u3059\u3002<\/p>\n
\r\narray.shift();    \/\/\u914d\u5217\u306e\u5148\u982d\u306e\u8981\u7d20\u3092\u524a\u9664\r\narray.pop();    \/\/\u914d\u5217\u306e\u672b\u5c3e\u306e\u8981\u7d20\u306e\u524a\u9664\r\n<\/pre>\n
\u914d\u5217\u306e\u4e2d\u9593\u306e\u8981\u7d20\u306e\u524a\u9664\u306fsplice()\u3092\u4f7f\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u4f8b\u306f\u3001key\u304cbanana\u306e\u5834\u5408\u306b\u3001\u914d\u5217\u306e\u8981\u7d20\u3092\u524a\u9664\u3057\u307e\u3059\u3002\u9023\u60f3\u914d\u5217\u306b\u3059\u308b\u5229\u70b9\u306e\u4e00\u3064\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n
\r\n\u4f8b\uff1a array.splice(\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u756a\u53f7, \u524a\u9664\u3059\u308b\u500b\u6570);\r\n\r\nfor(var i = 0; i < dataset.length; i ++){\r\n  if(dataset[i].key == \"banana\") dataset.splice(i,1);\r\n}\r\n<\/pre>\n
\u914d\u5217\u3092\u633f\u5165\u3059\u308b\u5834\u5408\u306b\u3082splice\u3092\u4f7f\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u4f8b\u306f\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u756a\u53f73\u306e\u5834\u6240\u306b\u300c{ key: \"tomato\", value: 100 }\u300d\u3092\u633f\u5165\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\r\n\u4f8b\uff1aarray.splice(\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u756a\u53f7, \u3053\u3053\u306f0, \u633f\u5165\u3059\u308b\u5024)\r\n\r\ndataset.splice(3, 0, {key: \"tomato\", value: 100})\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
\u9023\u60f3\u914d\u5217 d3\u306e\u914d\u5217\u3092\u5b9a\u7fa9\u3059\u308b\u6642\u306b\u3001\u9023\u60f3\u914d\u5217\u306b\u3059\u308b\u3068\u4fbf\u5229\u306a\u5834… Read more »<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35,27],"tags":[],"class_list":["post-8708","post","type-post","status-publish","format-standard","hentry","category-d3-js","category-27"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/posts\/8708","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/comments?post=8708"}],"version-history":[{"count":8,"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/posts\/8708\/revisions"}],"predecessor-version":[{"id":8756,"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/posts\/8708\/revisions\/8756"}],"wp:attachment":[{"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/media?parent=8708"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/categories?post=8708"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/tags?post=8708"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}