{"id":28696,"date":"2017-08-05T02:52:25","date_gmt":"2017-08-04T17:52:25","guid":{"rendered":"http:\/\/www.sejuku.net\/blog\/?p=28696"},"modified":"2024-05-06T11:44:14","modified_gmt":"2024-05-06T02:44:14","slug":"%e3%80%90javascript%e5%85%a5%e9%96%80%e3%80%91cookie%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%be%e3%81%a8%e3%82%81","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/28696","title":{"rendered":"\u30b5\u30a4\u30c8\u306e\u60c5\u5831\u3092\u81ea\u7531\u306b\u51e6\u7406! JavaScript\u3067cookie\u3092\u6271\u3046\u65b9\u6cd5\u3092\u5fb9\u5e95\u89e3\u8aac"},"content":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\uff01\u30d5\u30ea\u30fc\u30e9\u30f3\u30b9\u306e\u6843\u592a\u90ce\u3067\u3059\u3002<\/p>\n<p>\u307f\u306a\u3055\u3093\u3001cookie(\u30af\u30c3\u30ad\u30fc\uff09\u3063\u3066\u3054\u5b58\u77e5\u3067\u3059\u304b\uff1f\u69d8\u3005\u306a\u30b7\u30b9\u30c6\u30e0\u3001\u7279\u306b\u30aa\u30f3\u30e9\u30a4\u30f3\u30b7\u30e7\u30c3\u30d7\u306a\u3069\u3067\u306f\u6b20\u304b\u3059\u3053\u3068\u306e\u3067\u304d\u306a\u3044\u6280\u8853\u306e\u4e00\u3064\u3067\u3059\u306d\u3002<\/p>\n<p><div class=\"box_voice\">\u805e\u3044\u305f\u3053\u3068\u304c\u3042\u308b\u3051\u3069\u3001\u3069\u3093\u306a\u3082\u306e\u306a\u3093\u3060\u308d\u3046\u2026<br \/>\n\u306a\u3093\u3068\u306a\u304f\u306f\u77e5\u3063\u3066\u3044\u308b\u3051\u308c\u3069\u3001\u3069\u3093\u306a\u3053\u3068\u306b\u4f7f\u3046\u306e\u304b\u308f\u304b\u3089\u306a\u3044\u2026<\/div><\/p>\n<p>\u3068\u3044\u3046\u65b9\u3082\u591a\u3044\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<p>\u305d\u3053\u3067\u3001\u3053\u306e\u8a18\u4e8b\u3067\u306f<b>\u521d\u5fc3\u8005\u5411\u3051\u306bcookie\u3092\u5fb9\u5e95\u89e3\u8aac\uff01<\/b>cookie\u3068\u306f\u4f55\u304b\u304b\u3089\u4f7f\u3044\u65b9\u3001cookie\u3092\u4f7f\u3063\u305f\u5224\u5b9a\u51e6\u7406\u307e\u3067\u3001\u5e45\u5e83\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>cookie\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u6b63\u3057\u304f\u7406\u89e3\u3057\u3001<b>\u5fc5\u8981\u306a\u5834\u9762\u3067\u4f7f\u3044\u3053\u306a\u3059\u3053\u3068\u304c\u3067\u304d\u308b<\/b>\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\uff01<\/p>\n<h2>\u300ccookie\u300d\u3068\u306f\uff1f<\/h2>\n<p>\u305d\u308c\u3067\u306f\u3001\u307e\u305a\u6700\u521d\u306b<span style=\"color: #339966;\">\u300ccookie\u300d<\/span>\u306b\u3064\u3044\u3066\u57fa\u672c\u7684\u306a\u77e5\u8b58\u304b\u3089\u5b66\u7fd2\u3092\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff01\u300ccookie\u300d\u306f\u4e00\u822c\u7684\u306bWeb\u30b5\u30a4\u30c8\u306b\u8a2a\u554f\u3057\u3066\u304d\u305f\u30e6\u30fc\u30b6\u30fc\u306e\u60c5\u5831\u3092\u4fdd\u6301\u3059\u308b\u305f\u3081\u306b\u4f7f\u308f\u308c\u308b\u6a5f\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u30aa\u30f3\u30e9\u30a4\u30f3\u30b7\u30e7\u30c3\u30d7\u306a\u3069\u3067\u3001\u81ea\u5206\u304c\u6b32\u3057\u3044\u3068\u601d\u3063\u305f\u5546\u54c1\u3092\u30ab\u30fc\u30c8\u306b\u5165\u308c\u305f\u307e\u307e\u30b5\u30a4\u30c8\u3092\u96e2\u308c\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u305d\u3057\u3066\u3001\u540c\u3058\u30b5\u30a4\u30c8\u3092\u518d\u3073\u8a2a\u308c\u308b\u3068\u5546\u54c1\u304c\u30ab\u30fc\u30c8\u306b\u6b8b\u3063\u3066\u3044\u308b\u3053\u3068\u3063\u3066\u3088\u304f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f<\/p>\n<p>\u3053\u308c\u3053\u305d\u304c\u3001\u300ccookie\u300d\u3092\u5229\u7528\u3057\u3066\u30e6\u30fc\u30b6\u30fc\u306e\u60c5\u5831\u3092\u4fdd\u6301\u3057\u3066\u3044\u308b\u6a5f\u80fd\u3068\u3044\u3046\u308f\u3051\u3067\u3059\uff01<\/p>\n<p>\u3061\u306a\u307f\u306b\u3001\u300ccookie\u300d\u304c\u3069\u306e\u3088\u3046\u306a\u60c5\u5831\u3092\u4fdd\u6301\u3057\u3066\u3044\u308b\u304b\u306f\u3001\u5404\u7a2e\u30d6\u30e9\u30a6\u30b6\u306e\u30c7\u30d9\u30ed\u30c3\u30d1\u30fc\u30c4\u30fc\u30eb\u304b\u3089\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001Chrome\u30d6\u30e9\u30a6\u30b6\u306e\u5834\u5408\u306a\u3089\u300cApplication\u300d\u30e1\u30cb\u30e5\u30fc\u304b\u3089\u300cCookies\u300d\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068\u30c7\u30fc\u30bf\u3092\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff01<br \/>\n<img decoding=\"async\" class=\"alignnone size-full wp-image-45316\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/03\/javascript-cookie-img1.jpg\" alt=\"javascript-cookie-img1\" width=\"800\" height=\"400\" srcset=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/03\/javascript-cookie-img1.jpg 800w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/03\/javascript-cookie-img1-150x75.jpg 150w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/03\/javascript-cookie-img1-300x150.jpg 300w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/03\/javascript-cookie-img1-640x320.jpg 640w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><br \/>\n\u672c\u8a18\u4e8b\u3067\u306f\u3001JavaScript\u304b\u3089\u300ccookie\u300d\u3092\u64cd\u4f5c\u3059\u308b\u305f\u3081\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u624b\u6cd5\u3092\u8a73\u3057\u304f\u89e3\u8aac\u3059\u308b\u306e\u3067\u305c\u3072\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\uff01<\/p>\n<h2>cookie\u306e\u4f7f\u3044\u65b9<\/h2>\n<p>\u3053\u3053\u304b\u3089\u306f\u3001\u5b9f\u969b\u306b\u300ccookie\u300d\u3092\u4f7f\u3063\u305f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u624b\u6cd5\u306b\u3064\u3044\u3066\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n<p>JavaScript\u3067\u3088\u304f\u4f7f\u308f\u308c\u308b\u306e\u306f\u3001\u300ccookie\u300d\u3078\u306e\u30c7\u30fc\u30bf\u66f8\u304d\u8fbc\u307f\u30fb\u53d6\u5f97\u30fb\u524a\u9664\u306b\u306a\u308b\u306e\u3067\u305d\u308c\u305e\u308c\u8a73\u3057\u304f\u5b66\u3093\u3067\u3044\u304d\u307e\u3059\u3002<\/p>\n<h3>cookie\u306b\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u3080\uff08\u4fdd\u5b58\uff09\u65b9\u6cd5<\/h3>\n<p>\u307e\u305a\u306f\u3001\u300ccookie\u300d\u306b\u30c7\u30fc\u30bf\u3092<b>\u66f8\u304d\u8fbc\u3080\u65b9\u6cd5<\/b>\u304b\u3089\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n<p>\u4e00\u822c\u7684\u306a\u66f8\u304d\u8fbc\u307f\u306e\u65b9\u6cd5\u3068\u3057\u3066\u306f\u3010 cookie\u540d = \u5024 \u3011\u3068\u3044\u3046\u5f62\u5f0f\u3067\u8a18\u8ff0\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>\u305d\u3057\u3066\u3001JavaScript\u304b\u3089\u30d6\u30e9\u30a6\u30b6\u306e\u300ccookie\u300d\u3078\u30a2\u30af\u30bb\u30b9\u3059\u308b\u306b\u306f\u300cdocument.cookie\u300d\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u6b21\u306e\u30b5\u30f3\u30d7\u30eb\u4f8b\u3092\u898b\u3066\u304f\u3060\u3055\u3044\uff01<\/p>\n<pre class=\"lang:js decode:true \">document.cookie = 'name=\u592a\u90ce';<\/pre>\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001\u300cname\u300d\u3068\u3044\u3046cookie\u540d\u306b\u300c\u592a\u90ce\u300d\u3068\u3044\u3046\u5024\u3092\u4ed8\u4e0e\u3057\u3066\u3044\u308b\u306e\u304c\u5206\u304b\u308a\u307e\u3059\u3002\u305c\u3072\u3001\u5192\u982d\u3067\u3054\u7d39\u4ecb\u3057\u305f\u78ba\u8a8d\u65b9\u6cd5\u3067cookie\u306b\u5024\u304c\u30bb\u30c3\u30c8\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\uff01<\/p>\n<p>\u3053\u3053\u3067\u66f8\u304d\u8fbc\u307f\u306b\u95a2\u3057\u3066\u306e\u6ce8\u610f\u70b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u306f\u3001cookie\u3078\u30bb\u30c3\u30c8\u3059\u308b\u5024\u306b\u300c\u30bb\u30df\u30b3\u30ed\u30f3\u300d\u3084\u300c\u30ab\u30f3\u30de\u300d\u3082\u3057\u304f\u306f\u300c\u7a7a\u767d\u300d\u3092\u542b\u3081\u3066\u306f\u3044\u3051\u306a\u3044\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u300cencodeURIComponent()\u30e1\u30bd\u30c3\u30c9\u300d\u3092\u4f7f\u7528\u3057\u3066\u5024\u3092\u30a8\u30f3\u30b3\u30fc\u30c9\u3057\u3066\u304b\u3089\u30bb\u30c3\u30c8\u3059\u308b\u3068\u5b89\u5168\u3067\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:js decode:true \"> document.cookie = 'cookie_name=' + encodeURIComponent('outlet shoes');<\/pre>\n<h3>cookie\u306e\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5<\/h3>\n<p>\u6b21\u306b\u3001\u300ccookie\u300d\u304c\u4fdd\u6301\u3057\u3066\u3044\u308b<b>\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5<\/b>\u306b\u3064\u3044\u3066\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff01\u3068\u3001\u8a00\u3063\u3066\u3082\u5b9f\u306f\u300ccookie\u300d\u306e\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306b\u7528\u610f\u3055\u308c\u305f\u7279\u5225\u306a\u30e1\u30bd\u30c3\u30c9\u306a\u3069\u306fJavaScript\u306b\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u5b9f\u306f\u3001\u300ccookie\u300d\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u306f\u5358\u7d14\u306a\u6587\u5b57\u5217\uff08String\u578b\uff09\u306a\u306e\u3067\u3001String\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4e3b\u306b\u3001\u6587\u5b57\u5217\u3092\u5206\u5272\u3067\u304d\u308b\u300csplit()\u300d\u30e1\u30bd\u30c3\u30c9\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002\u6b21\u306e\u30b5\u30f3\u30d7\u30eb\u4f8b\u3092\u898b\u3066\u304f\u3060\u3055\u3044\uff01<\/p>\n<pre class=\"lang:js decode:true \">\/\/\u30c7\u30fc\u30bf\u30921\u3064\u305a\u3064\u306b\u5206\u3051\u308b\r\nvar r = document.cookie.split(';');\r\n\r\nr.forEach(function(value) {\r\n\r\n    \/\/cookie\u540d\u3068\u5024\u306b\u5206\u3051\u308b\r\n    var content = value.split('=');\r\n    \r\n    console.log( content[1] );\r\n})<\/pre>\n<p>\u300ccookie\u300d\u306b\u8907\u6570\u306e\u30c7\u30fc\u30bf\u304c\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001<span style=\"color: #339966;\">\u300c;\u300d<\/span>\u3067\u533a\u5207\u3089\u308c\u3066\u3044\u308b\u306e\u3067\u307e\u305a\u306f<b>\u300csplit(&#8216;;&#8217;)\u300d<\/b>\u30671\u3064\u305a\u3064\u306b\u5206\u3051\u3066\u914d\u5217\u5316\u3057\u307e\u3059\u3002<\/p>\n<p>\u305d\u3057\u3066\u3001\u305d\u308c\u305e\u308c\u306e\u30c7\u30fc\u30bf\u3092\u3055\u3089\u306b\u300csplit(&#8216;=&#8217;)\u300d\u3092\u5b9f\u884c\u3057\u3066\u300ccookie\u540d\u300d\u3068\u300c\u5024\u300d\u306b\u5206\u3051\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3059\u308c\u3070\u3001\u300ccookie\u300d\u306e\u30c7\u30fc\u30bf\u306bJavaScript\u304b\u3089\u30a2\u30af\u30bb\u30b9\u3057\u3084\u3059\u304f\u306a\u308b\u306e\u3067\u5fd8\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n<h3>cookie\u306e\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3059\u308b\u65b9\u6cd5<\/h3>\n<p>\u4eca\u5ea6\u306f\u3001\u300ccookie\u300d\u306b\u683c\u7d0d\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092<b>\u524a\u9664\u3059\u308b\u65b9\u6cd5<\/b>\u306b\u3064\u3044\u3066\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n<p>\u5f8c\u307b\u3069\u8a73\u3057\u304f\u3054\u7d39\u4ecb\u3057\u307e\u3059\u304c\u3001\u300ccookie\u300d\u306b\u306f<span style=\"color: #339966;\">\u6709\u52b9\u671f\u9650<\/span>\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u671f\u9650\u304c\u904e\u304e\u308b\u3068\u300ccookie\u300d\u306e\u30c7\u30fc\u30bf\u304c\u81ea\u52d5\u7684\u306b\u524a\u9664\u3055\u308c\u308b\u4ed5\u7d44\u307f\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n<p>JavaScript\u306b\u306f\u300ccookie\u300d\u3092\u524a\u9664\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u304c\u7121\u3044\u306e\u3067\u3001\u5b9f\u969b\u306b\u306f\u3053\u306e\u300c\u6709\u52b9\u671f\u9650\u300d\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u610f\u56f3\u7684\u306b\u524a\u9664\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>\u6709\u52b9\u671f\u9650\u306f\u3010max-age=\u79d2\u6570\u3011\u306e\u3088\u3046\u306b\u3001\u79d2\u6570\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u8a2d\u5b9a\u304c\u53ef\u80fd\u3067\u3059\uff01\u6b21\u306e\u30b5\u30f3\u30d7\u30eb\u4f8b\u3092\u898b\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre class=\"lang:js decode:true \">document.cookie = 'name=\"\u592a\u90ce\"; max-age=0';\r\n\r\nconsole.log(document.cookie);<\/pre>\n<p>\u524a\u9664\u3059\u308b\u5bfe\u8c61\u3068\u3057\u3066\u300cname=&#8221;\u592a\u90ce&#8221;\u300d\u3092\u8a18\u8ff0\u3057\u3001\u305d\u306e\u3042\u3068\u306b\u7d9a\u3051\u3066\u300cmax-age=0\u300d\u3068\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u524a\u9664\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u300cmax-age=0\u300d\u3068\u3044\u3046\u306e\u306f\u6709\u52b9\u671f\u9650\u304c<b>\u300c0\u79d2\u300d<\/b>\u3068\u3044\u3046\u610f\u5473\u306b\u306a\u308b\u306e\u3067\u3001\u5373\u5ea7\u306b\u524a\u9664\u304c\u3067\u304d\u308b\u3068\u3044\u3046\u308f\u3051\u3067\u3059\u3002<\/p>\n<h2>cookie\u306e\u8a2d\u5b9a\u306b\u3064\u3044\u3066<\/h2>\n<p>\u3053\u3053\u304b\u3089\u306f\u3001\u300ccookie\u300d\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u5c5e\u6027\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n<p>\u300c\u6709\u52b9\u671f\u9650\u300d\u3060\u3051\u3067\u306a\u304f\u3001\u300c\u6709\u52b9\u7bc4\u56f2\u300d\u3084\u300c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u300d\u306a\u3069\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u300c\u5c5e\u6027\u300d\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5<\/h3>\n<p>\u305d\u308c\u3067\u306f\u3001\u300ccookie\u300d\u306b\u8a2d\u5b9a\u3067\u304d\u308b<b>\u30aa\u30d7\u30b7\u30e7\u30f3\u5c5e\u6027<\/b>\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n<p>\u5927\u304d\u304f\u5206\u3051\u308b\u3068\u3001\u300c\u6709\u52b9\u671f\u9650\u300d\u300c\u6709\u52b9\u7bc4\u56f2\u300d\u300c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u300d\u306e3\u3064\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u8a2d\u5b9a\u3067\u304d\u308b\u306e\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\uff01<\/p>\n<table>\n<tbody>\n<tr>\n<td>path<\/td>\n<td>\u6307\u5b9a\u3057\u305f\u30d1\u30b9\u304ccookie\u306e\u6709\u52b9\u7bc4\u56f2\u306b\u306a\u308b<\/td>\n<\/tr>\n<tr>\n<td>domain<\/td>\n<td>\u6307\u5b9a\u3057\u305f\u30c9\u30e1\u30a4\u30f3\u304ccookie\u306e\u6709\u52b9\u7bc4\u56f2\u306b\u306a\u308b<\/td>\n<\/tr>\n<tr>\n<td>max-age<\/td>\n<td>\u6307\u5b9a\u3057\u305f\u79d2\u6570\u3060\u3051\u6709\u52b9\u671f\u9650\u306b\u306a\u308b<\/td>\n<\/tr>\n<tr>\n<td>expires<\/td>\n<td>\u6307\u5b9a\u3057\u305f\u65e5\u4ed8\u307e\u3067\u304c\u6709\u52b9\u671f\u9650\u306b\u306a\u308b<\/td>\n<\/tr>\n<tr>\n<td>secure<\/td>\n<td>https\u901a\u4fe1\u306e\u6642\u3060\u3051cookie\u304c\u6709\u52b9\u306b\u306a\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u306a\u304b\u3067\u3082\u3001\u7279\u306b\u3088\u304f\u4f7f\u3046\u306e\u306f\u300c\u6709\u52b9\u671f\u9650\u300d\u3067\u3059\u3002<\/p>\n<p>\u3053\u308c\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u89b3\u70b9\u304b\u3089\u3082\u3001\u534a\u6c38\u4e45\u7684\u306b\u30e6\u30fc\u30b6\u30fc\u60c5\u5831\u3092\u4fdd\u6301\u3057\u3066\u3044\u308b\u306e\u306f\u826f\u304f\u306a\u3044\u305f\u3081\u671f\u9650\u3092\u8a2d\u5b9a\u3059\u308b\u306e\u304c\u6163\u4f8b\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>cookie\u306e\u300c\u6709\u52b9\u671f\u9650\u300d\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5<\/h3>\n<p>\u3053\u3053\u3067\u3001\u300c\u6709\u52b9\u671f\u9650\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n<p>\u524d\u7ae0\u3067\u3082\u3054\u7d39\u4ecb\u3057\u307e\u3057\u305f\u304c\u3001\u7c21\u5358\u306b\u6709\u52b9\u671f\u9650\u3092\u8a2d\u5b9a\u3059\u308b\u306b\u306f\u300cmax-age\u300d\u5c5e\u6027\u3092\u4f7f\u3063\u3066\u6b21\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"lang:js decode:true \">document.cookie = 'name=\"\u592a\u90ce\"; max-age=180';<\/pre>\n<p>\u300cmax-age=180\u300d\u3068\u8a2d\u5b9a\u3059\u308c\u3070\u30013\u5206\u5f8c\u306b\u300cname=&#8221;\u592a\u90ce&#8221;\u300d\u3068\u3044\u3046cookie\u60c5\u5831\u304c\u524a\u9664\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308b\u308f\u3051\u3067\u3059\u3002<\/p>\n<p>\u3053\u308c\u306f\u5358\u7d14\u3067\u7c21\u5358\u306a\u65b9\u6cd5\u3067\u3059\u304c\u3001\u6570\u9031\u9593\u5f8c\u3068\u304b1\u30f6\u6708\u5f8c\u306a\u3069\u306e\u3088\u3046\u306b\u65e5\u7a0b\u3092\u6307\u5b9a\u3057\u305f\u3044\u5834\u5408\u3082\u3042\u308b\u3067\u3057\u3087\u3046\u3002\u305d\u306e\u5834\u5408\u306f\u300cexpires\u300d\u5c5e\u6027\u3092\u4ed8\u4e0e\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u65e5\u672c\u6642\u9593\u3067\u306f\u306a\u304f<b>\u300cGMT\uff08\u30b0\u30ea\u30cb\u30c3\u30b8\u6a19\u6e96\u6642\uff09\u300d<\/b>\u5f62\u5f0f\u3067\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u70b9\u306b\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002\u6b21\u306e\u30b5\u30f3\u30d7\u30eb\u4f8b\u3092\u898b\u3066\u304f\u3060\u3055\u3044\uff01<\/p>\n<pre class=\"lang:js decode:true \">\/\/\u6709\u52b9\u671f\u9650\u306e\u65e5\u6642\u3092\u6307\u5b9a\u3059\u308b\r\nvar count = new Date('2018\/3\/10 18:00');\r\n\r\n\/\/GMT\u3067\u671f\u9650\u3092\u8a2d\u5b9a\u3059\u308b\r\ndocument.cookie = 'name=\u592a\u90ce; expires=' + count.toUTCString();<\/pre>\n<p>\u307e\u305a\u6700\u521d\u306b\u3001\u8a2d\u5b9a\u3057\u305f\u3044\u6709\u52b9\u671f\u9650\u306e\u65e5\u6642\u3092<b>Date\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/b>\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p>\u305d\u3057\u3066\u3001GMT\u5f62\u5f0f\u306b\u5909\u63db\u3059\u308b\u305f\u3081\u306b<b>\u300ctoUTCString()\u300d\u30e1\u30bd\u30c3\u30c9<\/b>\u3092\u5229\u7528\u3059\u308c\u3070OK\u3067\u3059\uff01\u3053\u308c\u306b\u3088\u308a\u79d2\u6570\u3067\u306f\u306a\u304f\u65e5\u7a0b\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u6709\u52b9\u671f\u9650\u3092\u6c7a\u3081\u308b\u3053\u3068\u304c\u51fa\u6765\u308b\u308f\u3051\u3067\u3059\u3002<\/p>\n<h2>cookie\u306e\u5224\u5b9a\u51e6\u7406<\/h2>\n<p>\u6700\u5f8c\u306b\u3001\u300ccookie\u300d\u306e\u30c7\u30fc\u30bf\u3092\u6d3b\u7528\u3057\u305f<b>\u5224\u5b9a\u51e6\u7406<\/b>\u306b\u3064\u3044\u3066\u5b66\u3093\u3067\u3044\u304d\u307e\u3057\u3087\u3046\uff01\u300ccookie\u300d\u3092\u6271\u3046\u3088\u3046\u306b\u306a\u308b\u3068\u3001\u4efb\u610f\u306e\u30c7\u30fc\u30bf\u304c\u3059\u3067\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u5b9a\u3057\u305f\u3044\u30b1\u30fc\u30b9\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u5834\u5408\u306b\u3001\u4fbf\u5229\u306a\u30e1\u30bd\u30c3\u30c9\u3068\u3057\u3066String\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u300cindexOf()\u300d\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u6b21\u306e\u30b5\u30f3\u30d7\u30eb\u4f8b\u3092\u898b\u3066\u304f\u3060\u3055\u3044\uff01<\/p>\n<pre class=\"lang:js decode:true \">document.cookie = 'number=123';\r\n\r\nvar r = document.cookie.indexOf('number');\r\n\r\nconsole.log(r);<\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">\uff10<\/pre>\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001cookie\u3078<b>\u300cnumber=123\u300d<\/b>\u3068\u3044\u3046\u30c7\u30fc\u30bf\u3092\u683c\u7d0d\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u3042\u3068\u306b\u3001\u300cindexOf()\u300d\u3092\u4f7f\u3063\u3066cookie\u5185\u306b\u300cnumber\u300d\u3068\u3044\u3046\u6587\u5b57\u5217\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u3059\u3002<\/p>\n<p>\u3082\u3057\u3001\u898b\u3064\u304b\u3089\u306a\u3051\u308c\u3070\u300c-1\u300d\u304c\u8fd4\u3055\u308c\u3066\u3001\u898b\u3064\u304b\u3063\u305f\u5834\u5408\u306f<b>\u4f55\u6587\u5b57\u76ee\u306b\u5b58\u5728\u3057\u3066\u3044\u308b\u304b<\/b>\u3092\u6570\u5024\u3067\u8fd4\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u4ed5\u7d44\u307f\u3092\u5229\u7528\u3059\u308c\u3070\u3001\u6761\u4ef6\u5206\u5c90\u3092\u7c21\u5358\u306b\u4f5c\u308c\u307e\u3059\uff01<\/p>\n<pre class=\"lang:js decode:true \">document.cookie = 'number=123';\r\n\r\nvar result = document.cookie.indexOf('name');\r\n\r\nif(result !== -1) {\r\n\r\n    console.log('\u5b58\u5728\u3057\u307e\u3059');\r\n\r\n}\r\nelse {\r\n\r\n    console.log('\u5b58\u5728\u3057\u307e\u305b\u3093\uff01');\r\n\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">\u5b58\u5728\u3057\u307e\u305b\u3093\uff01<\/pre>\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<span style=\"color: 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