{"id":10171,"date":"2020-04-26T09:41:33","date_gmt":"2020-04-26T00:41:33","guid":{"rendered":"http:\/\/www.code-magagine.com\/?p=10171"},"modified":"2023-05-27T20:58:32","modified_gmt":"2023-05-27T11:58:32","slug":"%e3%80%90javascript%e3%80%91%e3%80%8c%e3%83%ac%e3%82%b9%e3%83%88%e6%bc%94%e7%ae%97%e5%ad%90%e3%80%8d%e3%81%a8%e3%80%8c%e3%82%b9%e3%83%97%e3%83%ac%e3%83%83%e3%83%88%e6%bc%94%e7%ae%97%e5%ad%90%e3%80%8d","status":"publish","type":"post","link":"http:\/\/www.code-magagine.com\/?p=10171","title":{"rendered":"\u3010JavaScript\u3011\u300c\u30ec\u30b9\u30c8\u6f14\u7b97\u5b50\u300d\u3068\u300c\u30b9\u30d7\u30ec\u30c3\u30c8\u6f14\u7b97\u5b50\u300d(\u300c...\u3068\u3044\u3046\u6587\u5b57\u5217\u300d)"},"content":{"rendered":"<p>\u300c...\u300d\u3068\u3044\u3046\u6587\u5b57\u3092\u7528\u3044\u305f\u6587\u6cd5\u304cES6\u304b\u3089\u767b\u5834\u3057\u3066\u3044\u307e\u3059\u3002\u30ec\u30b9\u30c8\u6f14\u7b97\u5b50\u3068\u30b9\u30d7\u30ec\u30c3\u30c8\u6f14\u7b97\u5b50\u304c\u3042\u308a\u307e\u3059\u304c\u4e0b\u8a18\u306e\u3088\u3046\u306b\u899a\u3048\u308b\u3068\u826f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u30ec\u30b9\u30c8\u6f14\u7b97\u5b50\u3000\u2192\u3000<span style=\"color: #ff0000;\"><strong>\u914d\u5217\u3084\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u3063\u3066\u304f\u308c\u308b\u3002<\/strong><\/span><\/li>\n<li>\u30b9\u30d7\u30ec\u30c3\u30c8\u6f14\u7b97\u5b50\u3000\u2192\u3000<span style=\"color: #ff0000;\"><strong>\u914d\u5217\u3084\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5c55\u958b\u3057\u3066\u304f\u308c\u308b\u3002<\/strong><\/span><\/li>\n<\/ul>\n<h2>\u30ec\u30b9\u30c8\u6f14\u7b97\u5b50<\/h2>\n<p>\u4e0b\u8a18\u306e\u3088\u3046\u306b\u95a2\u6570\u306e\u5f15\u6570\u306b...\u3092\u4f7f\u7528\u3059\u308b\u4e8b\u3067<span style=\"color: #ff0000;\"><strong>\u914d\u5217\u3068\u3057\u3066\u5f15\u6570\u3092\u6e21\u3059\u4e8b\u304c\u53ef\u80fd<\/strong><\/span>\u306b\u306a\u308a\u307e\u3059\u3002ES6\u4ee5\u524d\u3067\u3042\u308c\u3070argment\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u7b49\u3092\u8272\u3005\u3053\u306d\u304f\u308a\u307e\u308f\u3057\u3066\u5b9f\u88c5\u3059\u308b\u3057\u304b\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u3053\u308c\u3092<span style=\"color: #ff0000;\"><strong>\u300c\u30ec\u30b9\u30c8\u6f14\u7b97\u5b50\u300d<\/strong><\/span>\u3068\u547c\u3073\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">function kansu(...array) {\r\n  console.log(array);\r\n}\r\n\r\nkansu(1, \"\u3042\");<\/pre>\n<p>\u4e0b\u8a18\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3059\u308c\u3070<span style=\"color: #ff0000;\"><strong>\u30ec\u30b9\u30c8\u6f14\u7b97\u5b50\u306e\u524d<\/strong><\/span>\u306b\u3082\u5f15\u6570\u3092\u8a2d\u5b9a\u3059\u308b\u4e8b\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">function kansu(num,...array) {\r\n  console.log(array);\r\n}\r\n\r\nkansu(1, \"\u3042\");<\/pre>\n<h3>\u914d\u5217\u3078\u306e\u5206\u5272\u4ee3\u5165<\/h3>\n<p><span style=\"color: #ff0000;\"><strong>\u914d\u5217\u306e\u5ba3\u8a00\u306b\u4f7f\u7528\u3059\u308c\u3070\u914d\u5217\u3078\u306e\u5206\u5272\u4ee3\u5165\u3078\u3082\u5229\u7528\u3059\u308b\u4e8b\u304c\u53ef\u80fd<\/strong><\/span>\u3067\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true \">let [a, b, ...c] = [1, 2, 3, 4]\r\na; \/\/1\r\nb; \/\/2\r\nc; \/\/[3,4]<\/pre>\n<h3>\u6ce8\u610f\u70b9<\/h3>\n<p><span style=\"color: #ff0000;\"><strong>\u30ec\u30b9\u30c8\u6f14\u7b97\u5b50\u306e\u5f8c\u308d\u306b\u5f15\u6570\u3092\u4f7f\u3046\u4e8b\u304c\u3067\u304d\u306a\u304f\u306a\u308b<\/strong><\/span>\u70b9\u3067\u3059\u3002\u4e0b\u8a18\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3059\u308b\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true \">function kansu(...array, num) {\r\n  console.log(array);\r\n}\r\n\r\nkansu(1, \"\u3042\");<\/pre>\n<h2>\u30b9\u30d7\u30ec\u30c3\u30c8\u6f14\u7b97\u5b50<\/h2>\n<p>\u914d\u5217\u306e\u76f4\u524d\u306b\u4ed8\u52a0\u3057\u3066<span style=\"color: #ff0000;\"><strong>\u914d\u5217\u3092\u3088\u308a\u67d4\u8edf\u306b\u6271\u3046\u4e8b\u304c\u3067\u304d\u308b\u6f14\u7b97\u5b50<\/strong><\/span>\u306b\u306a\u308a\u307e\u3059\u3002\u4e0b\u8a18\u306e\u3088\u3046\u306b\u914d\u5217\u3092\u7c21\u5358\u306b\u518d\u69cb\u7bc9\u3059\u308b\u4e8b\u304c\u3067\u304d\u307e\u3059\u3002\uff08\u901a\u5e38\u3067\u3042\u308c\u3070concat\u95a2\u6570\u7b49\u3092\u4f7f\u3063\u3066\u3053\u306d\u304f\u308a\u56de\u3055\u306a\u3044\u3068\u3044\u3051\u306a\u304b\u3063\u305f\u308a\u3059\u308b\u3068\u601d\u3044\u307e\u3059\u3002\uff09<\/p>\n<pre class=\"lang:default decode:true \">let array = [\"\u3042\", \"\u3044\", \"\u3046\"]\r\nstr = [\"\u524d\", ...array, \"\u5f8c\"]\r\nconsole.log(str)       \/\/[ '\u524d', '\u3042', '\u3044', '\u3046', '\u5f8c' ]<\/pre>\n<h3>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5834\u5408<\/h3>\n<pre class=\"lang:default decode:true \">const person = {\r\n  name: \"\u592a\u90ce\",\r\n  age: 24,\r\n};\r\n\r\nconst person2 = { ...person, height: \"100cm\" }; \/\/ \u65e2\u5b58\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5229\u7528\u3057\u3066\u65b0\u3057\u3044\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd<\/pre>\n<p>\u306a\u304a\u3001\u540c\u3058\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u91cd\u8907\u3057\u3066\u3044\u308c\u3066\u3057\u307e\u3063\u305f\u5834\u5408\u306f\u30a8\u30e9\u30fc\u306b\u306a\u3089\u305a\u5f8c\u306b\u8ffd\u52a0\u3057\u305f\u307b\u3046\u304c\u512a\u5148\u3055\u308c\u307e\u3059\u3002\u307e\u305f\u3001\u3053\u308c\u306f\u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u914d\u5217\u306e\u8981\u7d20\u306b\u6307\u5b9a\u3059\u308c\u3070\u3001\u6587\u5b57\u5217\u3092\u914d\u5217\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd<\/h3>\n<pre class=\"lang:default decode:true\">let str = \"Hello World!\";\r\nconst strArray = [...str];\r\nconsole.log(strArray); \/\/[ 'H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd', '!' ]<\/pre>\n<h3>\u914d\u5217\u3092\u5c55\u958b\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd<\/h3>\n<h4>\u95a2\u6570\u306e\u547c\u3073\u51fa\u3057<\/h4>\n<pre class=\"lang:default decode:true\">function kansu(a, b) {\r\n  return a + b;\r\n}\r\n\r\nconst array = [1, 2];\r\nconsole.log(kansu(...array)); \/\/3\u304c\u304b\u3048\u308b\u3002<\/pre>\n<h4>\u914d\u5217\u306bpush\u3059\u308b<\/h4>\n<pre class=\"lang:default decode:true \">const array1 = [1, 2, 3];\r\nconst array2 = [4, 5, 6];\r\narray1.push(...array2);\r\nconsole.log(array1); \/\/[ 1, 2, 3, 4, 5, 6 ]\u3001\u666e\u901a\u306bpush\u3092\u3059\u308b\u3068[1,2,3,[4,5,6]]\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u3002<\/pre>\n","protected":false},"excerpt":{"rendered":"\u300c...\u300d\u3068\u3044\u3046\u6587\u5b57\u3092\u7528\u3044\u305f\u6587\u6cd5\u304cES6\u304b\u3089\u767b\u5834\u3057\u3066\u3044\u307e\u3059\u3002\u30ec\u30b9\u30c8\u6f14\u7b97\u5b50\u3068\u30b9\u30d7\u30ec\u30c3\u30c8\u6f14\u7b97\u5b50\u304c\u3042\u308a\u307e\u3059\u304c\u4e0b\u8a18\u306e\u3088\u3046\u306b\u899a\u3048\u308b\u3068\u826f\u3044\u3068\u601d\u3044\u307e\u3059\u3002 \u30ec\u30b9\u30c8\u6f14\u7b97\u5b50\u3000\u2192\u3000\u914d\u5217\u3084\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u3063\u3066\u304f\u308c\u308b\u3002 \u30b9\u30d7\u30ec\u30c3\u30c8\u6f14\u7b97\u5b50\u3000\u2192\u3000\u914d\u5217 [&hellip;]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[16],"tags":[],"_links":{"self":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/10171"}],"collection":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10171"}],"version-history":[{"count":16,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/10171\/revisions"}],"predecessor-version":[{"id":20291,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/10171\/revisions\/20291"}],"wp:attachment":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10171"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10171"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}