{"id":1061,"date":"2023-01-29T16:14:25","date_gmt":"2023-01-29T07:14:25","guid":{"rendered":"http:\/\/attacktube.com\/?p=1061"},"modified":"2023-02-03T14:25:40","modified_gmt":"2023-02-03T05:25:40","slug":"%e3%82%b9%e3%83%97%e3%83%ac%e3%83%83%e3%83%89%e6%a7%8b%e6%96%87","status":"publish","type":"post","link":"https:\/\/attacktube.com\/?p=1061","title":{"rendered":"JavaScript \u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587(Spread syntax)"},"content":{"rendered":"\n<p>\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u3092\u4f7f\u3063\u3066\u307f\u308b\u3002<br>\u914d\u5217\u306e\u8981\u7d20\u3092\u5c55\u958b\u3067\u304d\u308b\u3002<br>\u4f8b\u3092\u6b21\u306b\u793a\u3059\u3002<\/p>\n\n\n\n<!--more-->\n\n\n\n<br>\n<script async=\"\" src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3461056110605997\" crossorigin=\"anonymous\"><\/script>\n<ins class=\"adsbygoogle\" style=\"display:block; text-align:center;\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\" data-ad-client=\"ca-pub-3461056110605997\" data-ad-slot=\"3137443461\"><\/ins>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script>\n<br>\n\n\n\n<pre><code>\nlet add = function(a, b) {\n  return a + b;\n};\n\nlet sum = add(3, 4);\n\nconsole.log(\"sum = \" + sum);\n\nlet array = [10, 20];\n\n\/\/apply\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u5f15\u6570\u3092\u683c\u7d0d\u3057\u305f\u914d\u5217\u3092\u4f7f\u3063\u3066\n\/\/\u95a2\u6570\u3092\u547c\u3073\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u308b\nconsole.log(\"add.apply(null,array) = \" + add.apply(null, array));\n\n\/\/\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u3092\u4f7f\u3063\u3066array\u3092\u5c55\u958b\u3059\u308b\nconsole.log(\"add(...array) = \" + add(...array));\n\nlet add2 = function() {\n    let i, sum = 0;\n\n    for (i = 0; i &lt; arguments.length; i += 1) {\n        sum += arguments[i];\n    }\n\n    return sum;\n\n};\n\nlet array2 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];\n\n\/\/arguments\u3068\u3044\u3046\u914d\u5217\u306f\u547c\u3073\u51fa\u3055\u308c\u3066\u95a2\u6570\u5185\u3067\u5229\u7528\u3067\u304d\u308b\u8ffd\u52a0\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u3042\u308b\nconsole.log(\"add2(1,2,3,4,5,6,7,8,9,10) = \" + add2(1, 2, 3, 4, 5, 6, 7, 8, 9, 10));\n\n\/\/\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u3092\u4f7f\u3063\u3066array2\u3092\u5c55\u958b\u3059\u308b\nconsole.log(\"add2(...array2) = \" + add2(...array2));\n\n\/\/Math.max() \u95a2\u6570\u306f\u3001\u5165\u529b\u5f15\u6570\u3068\u3057\u3066\u4e0e\u3048\u3089\u308c\u305f 0 \u500b\u4ee5\u4e0a\u306e\u6570\u5024\u306e\u3046\u3061\u6700\u5927\u306e\u6570\u3092\u8fd4\u3057\u307e\u3059\u3002\nconsole.log(\"Math.max(1, 2, 3, 4, 5) = \" + Math.max(1, 2, 3, 4, 5));\n\n\/\/\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u3092\u4f7f\u3063\u3066array2\u3092\u5c55\u958b\u3059\u308b\nconsole.log(\"Math.max(...array2) = \" + Math.max(...array2));\n\n\/*\n\nsum = 7\nadd.apply(null,array) = 30\nadd(...array) = 30\nadd2(1,2,3,4,5,6,7,8,9,10) = 55\nadd2(...array2) = 55\nMath.max(1, 2, 3, 4, 5) = 5\nMath.max(...array2) = 10\n\n*\/\n\n<\/code><\/pre>\n\n\n\n<script type=\"text\/javascript\">\njQuery(function($){\n$(\".jp-video\").hide();\n});\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u3092\u4f7f\u3063\u3066\u307f\u308b\u3002\u914d\u5217\u306e\u8981\u7d20\u3092\u5c55\u958b\u3067\u304d\u308b\u3002\u4f8b\u3092\u6b21\u306b\u793a\u3059\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1061","post","type-post","status-publish","format-standard","hentry","category-javascript"],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/attacktube.com\/index.php?rest_route=\/wp\/v2\/posts\/1061","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/attacktube.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/attacktube.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/attacktube.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/attacktube.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1061"}],"version-history":[{"count":3,"href":"https:\/\/attacktube.com\/index.php?rest_route=\/wp\/v2\/posts\/1061\/revisions"}],"predecessor-version":[{"id":1117,"href":"https:\/\/attacktube.com\/index.php?rest_route=\/wp\/v2\/posts\/1061\/revisions\/1117"}],"wp:attachment":[{"href":"https:\/\/attacktube.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1061"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/attacktube.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1061"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/attacktube.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1061"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}