{"id":652,"date":"2021-03-03T16:44:45","date_gmt":"2021-03-03T07:44:45","guid":{"rendered":"http:\/\/www.opentone.co.jp\/ot-lab\/?p=652"},"modified":"2025-05-12T10:06:21","modified_gmt":"2025-05-12T01:06:21","slug":"%e3%80%90html5%e3%80%91web-storage%e3%82%92%e6%8e%98%e3%82%8a%e4%b8%8b%e3%81%92%e3%81%a6%e3%81%bf%e3%82%88%e3%81%86","status":"publish","type":"post","link":"https:\/\/www.opentone.co.jp\/ot-lab\/all\/web-system\/%e3%80%90html5%e3%80%91web-storage%e3%82%92%e6%8e%98%e3%82%8a%e4%b8%8b%e3%81%92%e3%81%a6%e3%81%bf%e3%82%88%e3%81%86","title":{"rendered":"\u3010HTML5\u3011Web Storage\u3092\u6398\u308a\u4e0b\u3052\u3066\u307f\u3088\u3046"},"content":{"rendered":"\n<p>\u3053\u3093\u306b\u3061\u306f t.yamagishi\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306fWeb Storage\u3092\u4ed5\u69d8\u7684\u3001\u6280\u8853\u7684\u306b\u6398\u308a\u4e0b\u3052\u3066\u307f\u3088\u3046\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Web Storage\u3068\u306f<\/h3>\n\n\n\n<p>Web Storage\u3092\u7c21\u5358\u306b\u8aac\u660e\u3059\u308b\u3068\u3001\u30a6\u30a7\u30d6\u30fb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b key-value \u30da\u30a2\u306e\u6c38\u7d9a\u7684\u306a\u30c7\u30fc\u30bf\u3092\u84c4\u7a4d\u3059\u308b\u305f\u3081\u306e API \u3067\u3059\u3002<\/p>\n\n\n\n<p>Web Storage\u3092\u4f7f\u3048\u3070\u3001\u3053\u3093\u306a\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u30aa\u30d5\u30e9\u30a4\u30f3\u3067\u3082WEB\u30e1\u30fc\u30eb\u3092\u4fdd\u5b58\u3067\u304d\u308b\uff08\u305d\u3057\u3066\u30aa\u30f3\u30e9\u30a4\u30f3\u306b\u306a\u3063\u305f\u6642\u306b\u81ea\u52d5\u7684\u306b\u30b5\u30fc\u30d0\u306b\u9001\u4fe1\uff09<\/li><li>\u6570MB\u7a0b\u5ea6\u306e\u30c7\u30fc\u30bf\u3092\u6271\u3046\u3060\u3051\u3067\u3042\u308c\u3070\u3001\u30b5\u30fc\u30d0\u304c\u306a\u304f\u3066\u3082\u30d6\u30e9\u30a6\u30b6\u3060\u3051\u3067\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u4f5c\u308c\u308b<\/li><\/ul>\n\n\n\n<p>\u305d\u3057\u3066\u305d\u306e\u4ed5\u69d8\u306fW3C\u304c\u4f5c\u6210\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u307e\u3060\u6b63\u5f0f\u306b\u627f\u8a8d\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p><a href=\"http:\/\/www.w3.org\/TR\/webstorage\/\">http:\/\/www.w3.org\/TR\/webstorage\/<\/a><\/p>\n\n\n\n<p>\u6b63\u5f0f\u3067\u306f\u306a\u3044\u3082\u306e\u306e\u3001\u4e00\u822c\u7684\u306a\u30d6\u30e9\u30a6\u30b6\u306f\u52e7\u544a\u6848\u306b\u57fa\u3065\u3044\u3066Web Storage\u3092\u5b9f\u88c5\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5404\u30d6\u30e9\u30a6\u30b6\u306e\u5bfe\u5fdc\u72b6\u6cc1\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u30d6\u30e9\u30a6\u30b6<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30a2\u30d7\u30ea\u540d<\/th><th>\u30d0\u30fc\u30b8\u30e7\u30f3<\/th><\/tr><\/thead><tbody><tr><td>IE<\/td><td>8\u4ee5\u964d<\/td><\/tr><tr><td>Firefox<\/td><td>3.6\u4ee5\u964d<\/td><\/tr><tr><td>Chrome<\/td><td>8\u4ee5\u964d<\/td><\/tr><tr><td>Safari<\/td><td>5\u4ee5\u964d<\/td><\/tr><tr><td>Opera<\/td><td>11\u4ee5\u964d<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u30e2\u30d0\u30a4\u30eb\u30d6\u30e9\u30a6\u30b6<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30a2\u30d7\u30ea\u540d<\/th><th>\u30d0\u30fc\u30b8\u30e7\u30f3<\/th><\/tr><\/thead><tbody><tr><td>iOS<\/td><td>5\u4ee5\u964d<\/td><\/tr><tr><td>Android<\/td><td>3\u4ee5\u964d \u203b1<\/td><\/tr><tr><td>Windows Phone<\/td><td>9\u4ee5\u964d<\/td><\/tr><tr><td>Opera Mini<\/td><td>\u00d7<\/td><\/tr><tr><td>Opera Mobile<\/td><td>11\u4ee5\u964d<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u203b1 WebView\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u306fAndroid 2.0(API Level5)\u304b\u3089\u6709\u52b9\u306b\u3059\u308b\u70ba\u306eAPI\u304c\u8ffd\u52a0<\/p>\n\n\n\n<p>\u666e\u6bb5\u4f7f\u308f\u308c\u3066\u3044\u308b\u30d6\u30e9\u30a6\u30b6\u306f\u5927\u4f53\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">HTML5\u3068\u306e\u95a2\u4fc2<\/h3>\n\n\n\n<p>HTML5\u3068\u30bb\u30c3\u30c8\u3067\u7d39\u4ecb\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044Web Storage\u3067\u3059\u304c\u30012009\u5e744\u670823\u65e5\u306e\u8349\u6848\u300c HTML 5 differences from HTML 4\u300d\u306e\u4e2d\u3067\u3001<strong>HTML5\u3068\u5207\u308a\u96e2\u3059<\/strong>\u3068\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br><a href=\"http:\/\/www.w3.org\/TR\/2009\/WD-html5-diff-20090423\/\" target=\"_blank\" rel=\"noreferrer noopener\">http:\/\/www.w3.org\/TR\/2009\/WD-html5-diff-20090423\/<\/a><\/p>\n\n\n\n<p>HTML5\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u306e\u306bWeb Storage\u304c\u4f7f\u3048\u306a\u304b\u3063\u305f\u308a\u3001\u9006\u306bHTML5\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u3051\u3069Web Storage\u304c\u4f7f\u3048\u3066\u3082\u4e0d\u601d\u8b70\u3067\u306f\u306a\u3044\u306e\u3067\u3059\u3002<br>Android 3\u304b\u3089\u6a19\u6e96\u30d6\u30e9\u30a6\u30b6\u304cHTML5\u306b\u5bfe\u5fdc\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u30a2\u30d7\u30ea\u5185\u3067\u30d6\u30e9\u30a6\u30b6\u3068\u3057\u3066\u4f7f\u308f\u308c\u308bWebView\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u306f Android 2.0(API Level5)\u304b\u3089Web Storage\u306b\u95a2\u3059\u308bAPI\u304c\u8ffd\u52a0\u3055\u308c\u3066\u3044\u308b\u306e\u306f\u3001\u3053\u3046\u3044\u3046\u7406\u7531\u304b\u3089\u306a\u306e\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p><a href=\"http:\/\/developer.android.com\/reference\/android\/webkit\/WebStorage.html\" target=\"_blank\" rel=\"noreferrer noopener\">http:\/\/developer.android.com\/reference\/android\/webkit\/WebStorage.html<\/a><br>\u5b9f\u969b\u4f7f\u3048\u308b\u304b\u3069\u3046\u304b\u306f<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">[code language=\"JavaScript\"]\nvar ss = window.sessionStorage;\nvar ls = window.localStorage;\nalert('sessionStorage:' + ss + \":localStorage:\" + ls);\n[\/code]<\/pre>\n\n\n\n<p>\u3068\u3057\u3066\u307f\u3066\u3001Object\u304c\u623b\u3063\u3066\u304d\u305f\u3089\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u3068\u5224\u65ad\u3057\u3066\u3044\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6398\u308a\u4e0b\u3052\u3066\u307f\u3088\u3046<\/h3>\n\n\n\n<p>Web Storage API\u3092\u4f7f\u3046\u3068\u3001\u4f55\u304b\u3057\u3089\u306e\u30c7\u30fc\u30bf\u3092\u30ed\u30fc\u30ab\u30eb\u306e\u30b9\u30c8\u30ec\u30fc\u30b8\u306b\u4fdd\u5b58\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br>\u300cWeb\u300d\u3068\u3064\u3044\u3066\u3044\u308b\u306e\u3067\u3001\u3061\u3087\u3063\u3068\u6df7\u4e71\u3057\u307e\u3059\u304c\u3001\u30b5\u30fc\u30d0\u3067\u306f\u306a\u304f\u500b\u3005\u306e\u7aef\u672b\u306b\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002<br>\u30ed\u30fc\u30ab\u30eb\u306b\u4fdd\u5b58\u3059\u308b\u6a5f\u80fd\u3068\u3057\u3066Cookie\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u308f\u3056\u308f\u3056\u65b0\u3057\u3044\u6a5f\u80fd\u3068\u3057\u3066\u8ffd\u52a0\u3055\u308c\u305f\u3053\u3068\u306b\u306f\u610f\u5473\u304c\u3042\u308a\u307e\u3059\u3002<br>Cookie\u306f\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u306a\u3069\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u304c\u30d6\u30e9\u30a6\u30b6\u306b\u5bfe\u3057\u3066\u305d\u306e\u72b6\u614b\u3092\u7ba1\u7406\u3059\u308b\u305f\u3081\u306b\u4f5c\u3089\u308c\u307e\u3057\u305f\u3002\u305d\u306e\u305f\u3081\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u5bfe\u3057\u3066\u3001\u6bce\u56deCookie\u306e\u60c5\u5831\u3092\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u306b\u9001\u308a\u307e\u3059\u3002<br>\u307e\u305f\u3001Cookie\u81ea\u4f53\u5358\u4e00\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3092\u60f3\u5b9a\u3057\u305f\u6a5f\u80fd\u3067\u3042\u308a\u3001\u8907\u6570\u30a6\u30a3\u30f3\u30c9\u3084\u8fd1\u5e74\u6a19\u6e96\u5316\u3057\u3064\u3064\u3042\u308b\u30bf\u30d6\u306a\u3069\u306b\u3088\u308b\u3001\u4e26\u5217\u51e6\u7406\u3092\u884c\u3046\u3053\u3068\u3067\u5f53\u521d\u306e\u30d6\u30e9\u30a6\u30b6\u306e\u72b6\u614b\u7ba1\u7406\u304c\u96e3\u3057\u304f\u306a\u3063\u3066\u304d\u307e\u3057\u305f\u3002<br>\u3053\u308c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306bWeb Storage\u3068\u3044\u3046\u6a5f\u80fd\u304c\u751f\u307e\u308c\u305f\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3067\u306fWeb Storage\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<br>Web Storage\u306b\u306f\u300c<strong>sessionStorage<\/strong>\u300d\u3068\u300c<strong>localStorage<\/strong>\u300d\u306e\u304c\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>W3C\u3067\u306f\u3001Storage\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092\u5b9f\u88c5\u3059\u308b\u3082\u306e\u3068\u5b9a\u7fa9\u3055\u308c\u3001\u3055\u3089\u306b\u5404Storage\u306b\u3088\u3063\u3066\u3001\u30e1\u30bd\u30c3\u30c9\u306e\u632f\u308b\u821e\u3044\u306b\u9055\u3044\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><a href=\"http:\/\/www.w3.org\/TR\/webstorage\/#the-storage-interface\" target=\"_blank\" rel=\"noreferrer noopener\">http:\/\/www.w3.org\/TR\/webstorage\/#the-storage-interface<\/a><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">[code language=\"Java\"]\ninterface Storage {\n readonly attribute unsigned long length;\n DOMString? key(unsigned long index);\n getter DOMString getItem(DOMString key);\n setter creator void setItem(DOMString key, DOMString value);\n deleter void removeItem(DOMString key);\n void clear();\n};\n[\/code]<\/pre>\n\n\n\n<p>\u307e\u305a\u300c<strong>sessionStorage<\/strong>\u300d\u3068\u805e\u3044\u3066\u3001Cookie\u3068\u30bb\u30c3\u30b7\u30e7\u30f3ID\u306b\u3088\u308b\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u5074\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u304c\u982d\u306b\u6d6e\u304b\u3093\u3060\u4eba\u3082\u3044\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u30bb\u30c3\u30b7\u30e7\u30f3 \u3010 session \u3011<br><a href=\"http:\/\/e-words.jp\/w\/E382BBE38383E382B7E383A7E383B3.html\" target=\"_blank\" rel=\"noreferrer noopener\">http:\/\/e-words.jp\/w\/E382BBE38383E382B7E383A7E383B3.html<\/a><\/p>\n\n\n\n<p>\u5148\u306b\u3082\u66f8\u304d\u307e\u3057\u305f\u304c\u3001Web Storage\u306f\u30ed\u30fc\u30ab\u30eb\u306b\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3059\u308b\u6a5f\u80fd\u3067\u3042\u308b\u70ba\u3001\u3053\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u3068\u306f\u610f\u5473\u304c\u9055\u3044\u307e\u3059\u3002<br>\u3053\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u304c\u63a5\u7d9a\/\u30ed\u30b0\u30a4\u30f3\u304b\u3089\u5207\u65ad\/\u30ed\u30b0\u30aa\u30d5\u3060\u3068\u3059\u308b\u3068\u3001sessionStorage\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u306f\u30d6\u30e9\u30a6\u30b6\u306e\u8d77\u52d5\/\u30bf\u30d6\u3092\u958b\u304f\u304b\u3089\u30d6\u30e9\u30a6\u30b6\u306e\u7d42\u4e86\/\u30bf\u30d6\u3092\u9589\u3058\u308b\u307e\u3067\u306b\u306a\u308a\u307e\u3059\u3002<br>\u307e\u305f\u30d6\u30e9\u30a6\u30b6\u306e\u30a6\u30a4\u30f3\u30c9\u30a6\/\u30bf\u30d6\u6bce\u306b\u5225\u30bb\u30c3\u30b7\u30e7\u30f3\u3068\u3057\u3066\u7ba1\u7406\u3055\u308c\u307e\u3059\u3002\u6ce8\u610f\u3057\u3066\u307b\u3057\u3044\u3068\u3053\u308d\u306f\u3001\u5f93\u6765\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u3068\u306f\u5225\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u8907\u6570\u8d77\u52d5\u3057\u3066\u64cd\u4f5c\u3057\u305f\u5834\u5408\u3001\u30bb\u30c3\u30b7\u30e7\u30f3ID\u306f\u540c\u3058\u3067\u3082sessionStorage\u304b\u3089\u53d6\u5f97\u3067\u304d\u308b\u5024\u306f\u5225\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u6b21\u306b\u300c<strong>localStorage<\/strong>\u300d\u3067\u3059\u304c\u3001\u3053\u3061\u3089\u306f\u30d6\u30e9\u30a6\u30b6\u3092\u7d42\u4e86\u3057\u3066\u3082\u30c7\u30fc\u30bf\u304c\u6d88\u3048\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u6b21\u56de\u8d77\u52d5\u6642\u3084\u5225\u30a6\u30a4\u30f3\u30c9\u30a6\u304b\u3089\u3067\u3082\u540c\u3058\u30c7\u30fc\u30bf\u3092\u53c2\u7167\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br>\u305f\u3060\u3057\u3001\u7121\u6761\u4ef6\u306b\u53c2\u7167\u3067\u304d\u3066\u3057\u307e\u3046\u3068\u3044\u3046\u3053\u3068\u306f\u306a\u304f\u3001\u300c\u30d7\u30ed\u30c8\u30b3\u30eb:\/\/\u30c9\u30e1\u30a4\u30f3\u540d:\u30dd\u30fc\u30c8\u756a\u53f7\u300d\uff08W3C\u3067\u306forigin\u3068\u8868\u8a18\u3055\u308c\u3066\u3044\u307e\u3059\uff09\u304c\u540c\u3058\u30b5\u30a4\u30c8\u5185\u3067\u3057\u304b\u53c2\u7167\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u3053\u306eorigin\u6bce\u306e\u30a2\u30af\u30bb\u30b9\u5236\u9650\u306fsessionStorage\u3082\u540c\u69d8\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u307e\u3067\u306e\u3053\u3068\u3092\u307e\u3068\u3081\u308b\u3068<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>&nbsp;<\/th><th>\u53c2\u7167\u7bc4\u56f2<\/th><th>\u4fdd\u5b58\u5bb9\u91cf<\/th><th>\u6709\u52b9\u671f\u9593<\/th><\/tr><\/thead><tbody><tr><td>Cookie<\/td><td>domain,path\u5358\u4f4d<\/td><td>4KB<\/td><td>\u671f\u9593\u6307\u5b9a<\/td><\/tr><tr><td>sessionStorage<\/td><td>\u30a6\u30a4\u30f3\u30c9\u30a6,origin\u5358\u4f4d<\/td><td>5MB\/origin\u203b2,3<\/td><td>\u30d6\u30e9\u30a6\u30b6\u306e\u7d42\u4e86\/\u30bf\u30d6\u3092\u9589\u3058\u308b\u307e\u3067<\/td><\/tr><tr><td>localStorage<\/td><td>origin\u5358\u4f4d<\/td><td>5MB\/origin\u203b2,3<\/td><td>\u6c38\u7d9a\u7684<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u203b2 W3C\u306e\u63a8\u5968\u3067\u3042\u308a\u5236\u9650\u3067\u306f\u306a\u3044<br>\u203b3 \u5236\u9650\u3092\u8d85\u904e\u3057\u305f\u5834\u5408\u3001\u300c<strong>QuotaExceededError<\/strong>\u300d\u4f8b\u5916\u304c\u767a\u751f\u3059\u308b<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Web Storage\u3092\u4f7f\u3063\u3066\u307f\u3088\u3046<\/h3>\n\n\n\n<p>\u3067\u306f\u5b9f\u969b\u306bWeb Storage\u3092\u4f7f\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002<br>\u5148\u307b\u3069\u7d39\u4ecb\u3057\u305fStorage\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092\u5b9f\u88c5\u3057\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u5b9f\u884c\u306b\u306fChrome\u3092\u5229\u7528\u3057\u3066\u3044\u307e\u3059<\/li><li>\u30b5\u30fc\u30d0\u3068\u3057\u3066Tomcat\u3092\u30ed\u30fc\u30ab\u30eb\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u4f5c\u6210\u3055\u308c\u308b\u300cexamples\u300d\u306bHTML\u3092\u914d\u7f6e\u3057\u3066\u3044\u307e\u3059<\/li><li>\u6295\u7a3f\u6642Chrome\u306fhttp:\/\/\u3067\u306f\u306a\u304ffile:\/\/\u3067\u5b9f\u884c\u3057\u3066\u3082Web Storage\u3092\u4f7f\u3048\u307e\u3059\u304c\u3001IE\u3067\u306f\u4f7f\u3048\u307e\u305b\u3093\u3067\u3057\u305f<\/li><\/ul>\n\n\n\n<pre class=\"wp-block-preformatted\">[code language=\"JavaScript\"]\n\/\/ sessionStorage\u306b\u5bfe\u3057\u3066\u5024\u3092\u8a2d\u5b9a\u3059\u308b\nsessionStorage.setItem('name', 't-yamagishi');\n\/\/ sessionStorage\u304b\u3089\u5024\u3092\u53d6\u5f97\u3059\u308b\nvar value = sessionStorage.getItem('name');\nalert('name = ' + value);\n[\/code]<\/pre>\n\n\n\n<p>\u203b&#8221;sessionStorage&#8221;\u306f\u4e88\u7d04\u3055\u308c\u3066\u3044\u308b\u70ba\u3001\u308f\u3056\u308f\u3056\u300cwindow.sessionStorage\u300d\u3092\u53c2\u7167\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093<\/p>\n\n\n\n<p>\u4e0a\u8a18\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u3053\u3093\u306a\u611f\u3058\u306e\u30c0\u30a4\u30a2\u30ed\u30b0\u304c\u8868\u793a\u3055\u308c\u307e\u3059<br><a href=\"http:\/\/labs.opentone.co.jp\/wp-content\/uploads\/2013\/07\/sample11.png\"><\/a><\/p>\n\n\n\n<p>\u3053\u308c\u3060\u3051\u3067\u306f\u3001\u672c\u5f53\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u3001\u308f\u304b\u3089\u306a\u3044\u306e\u3067\u5b9f\u969b\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<br>Google Chrome\u306e\u8a2d\u5b9a &gt; \u30c4\u30fc\u30eb &gt; \u30c7\u30d9\u30ed\u30c3\u30d1\u30fc\u30c4\u30fc\u30eb\u3092\u9078\u629e\u3057\u3066\u3001Resources\u30bf\u30d6\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p><a href=\"http:\/\/labs.opentone.co.jp\/wp-content\/uploads\/2013\/07\/sample22.png\"><\/a><br>\u3053\u3093\u306a\u753b\u9762\u304c\u8868\u793a\u3055\u308c\u308b\u306e\u3067\u3001\u8d64\u7dda\u306e\u300chttp:\/\/localhost:8080\/\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u304f\u3060\u3055\u3044\u3002<br>\u203b\u3053\u3053\u304b\u3089\u3082origin\u6bce\u306b\u30c7\u30fc\u30bf\u304c\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u306e\u304c\u308f\u304b\u308a\u307e\u3059\u306d<\/p>\n\n\n\n<p><a href=\"http:\/\/labs.opentone.co.jp\/wp-content\/uploads\/2013\/07\/sample32.png\"><\/a><br>Key\u5217\u306b\u300cname\u300dValue\u5217\u306b\u300ct-yamagishi\u300d\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<br>\u3061\u306a\u307f\u306b\u3001Local Storage\u306e\u9805\u76ee\u306b\u306f\u4f55\u3082\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u3068\u3066\u3082\u7c21\u5358\u306b\u30c7\u30fc\u30bf\u306e\u51fa\u3057\u5165\u308c\u304c\u3067\u304d\u307e\u3057\u305f\u3002<br>\u6b21\u306blocalStorage\u3082\u8ffd\u52a0\u3057\u3066\u3001sessionStorage\u3068localStorage\u306e\u6319\u52d5\u306e\u9055\u3044\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">[sourcecode language=\"javascript\"]\n&lt;html&gt;\n&lt;script type=\"text\/javascript\"&gt;\n\nvar COMMENT = 'comment';\nvar SESSION = 'session';\nvar LOCAL = 'local';\nvar NAME = 'name';\n\nvar comment;\nvar sessionComment;\nvar localComment;\n\nfunction initialize() {\n  \/\/ \u521d\u671f\u51e6\u7406\n  comment = document.getElementById(COMMENT);\n  sessionComment = document.getElementById(SESSION);\n  localComment = document.getElementById(LOCAL);\n\n  \/\/ \u521d\u671f\u8868\u793a\u6642\u306b\u30b9\u30c8\u30ec\u30fc\u30b8\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5024\u3092\u30bb\u30c3\u30c8\u3057\u307e\u3059\n  \/\/ sessionStorage,localStorage \u3068\u3044\u3046\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u4e88\u7d04\u3055\u308c\u3066\u3044\u307e\u3059\n  setComment(sessionStorage, sessionComment);\n  setComment(localStorage, localComment);\n\n  \/\/\u521d\u671f\u30c7\u30fc\u30bf\u6295\u5165\n  sessionStorage.setItem(NAME, SESSION);\n  localStorage.setItem(NAME, LOCAL);\n\n  \/\/ \u30b3\u30e1\u30f3\u30c8\u304c\u66f4\u65b0\u3055\u308c\u308b\u305f\u3073\u306b\u30b9\u30c8\u30ec\u30fc\u30b8\u3092\u66f4\u65b0\u3059\u308b\n  comment.addEventListener('keyup',function(event){\n      localStorage.setItem(COMMENT, comment.value);\n      sessionStorage.setItem(COMMENT, comment.value);\n\n      \/\/\u540c\u6642\u306b\u30c6\u30ad\u30b9\u30c8\u306b\u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u5024\u3092\u30bb\u30c3\u30c8\u3057\u307e\u3059\n      setComment(sessionStorage, sessionComment);\n      setComment(localStorage, localComment);\n  },false);\n}\n\nwindow.onload = function() {\n     initialize();\n}\n\/\/ Storage\u30a4\u30d9\u30f3\u30c8\u304c\u767a\u751f\u3057\u305f\u3089\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3059\u308b\nwindow.onstorage = function(event){\n    if (event.storageArea.getItem(NAME) == LOCAL) {\n      localComment.value = event.newValue;\n    } else if (event.storageArea.getItem(NAME) == SESSION) {\n      sessionComment.value = event.newValue;\n    }\n}\n\n\/\/ \u30b9\u30c8\u30ec\u30fc\u30b8\u304b\u3089\u30b3\u30e1\u30f3\u30c8\u3092\u53d6\u5f97\u3057\u3066\u30a8\u30ec\u30e1\u30f3\u30c8\u306b\u8a2d\u5b9a\n\/\/ \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u304c\u540c\u3058\u306a\u306e\u3067\u3001\u547c\u51fa\u5143\u306e\u30b9\u30c8\u30ec\u30fc\u30b8\u6b21\u7b2c\u3067\u51e6\u7406\u306f\u540c\u3058\nfunction setComment(storage, element) {\n    var text = storage.getItem(COMMENT);\n    element.value = text;\n}\n\n&lt;\/script&gt;\n\n&lt;body&gt;\n  Comment&lt;input id=\"comment\" type=\"text\"&gt;\n  &lt;table&gt;\n    &lt;tr&gt;\n      &lt;th&gt;SessionStorage&lt;\/th&gt;\n      &lt;td&gt;\n        &lt;input id=\"session\" type=\"text\" size=\"50\" readonly&gt;\n      &lt;\/td&gt;\n    &lt;\/tr&gt;\n    &lt;tr&gt;\n      &lt;th&gt;LocalStorage&lt;\/th&gt;\n      &lt;td&gt;\n        &lt;input id=\"local\" type=\"text\" size=\"50\" readonly&gt;\n      &lt;\/td&gt;\n    &lt;\/tr&gt;\n  &lt;\/table&gt;\n&lt;\/body&gt;\n&lt;\/html&gt;\n[\/sourcecode]<\/pre>\n\n\n\n<p>\u307e\u305a\u3001\u30bf\u30d6\u3092\u4e8c\u3064\u65b0\u898f\u306b\u958b\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u521d\u56de\u306fStorage\u306b\u4f55\u3082\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u306e\u3067\u3001\u300cSessionStorage\u300d\u300cLocalStorage\u300d\u30c6\u30ad\u30b9\u30c8\u306b\u306f\u4f55\u3082\u8868\u793a\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"609\" height=\"204\" src=\"https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2021\/03\/sample5_1_12.png\" alt=\"\" class=\"wp-image-653\" srcset=\"https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2021\/03\/sample5_1_12.png 609w, https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2021\/03\/sample5_1_12-300x100.png 300w\" sizes=\"(max-width: 609px) 100vw, 609px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"609\" height=\"204\" src=\"https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2021\/03\/sample5_1_21.png\" alt=\"\" class=\"wp-image-654\" srcset=\"https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2021\/03\/sample5_1_21.png 609w, https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2021\/03\/sample5_1_21-300x100.png 300w\" sizes=\"(max-width: 609px) 100vw, 609px\" \/><\/figure>\n\n\n\n<p>\u6b21\u306b\u5de6\u5074\u306e\u30bf\u30d6\u306e\u30b3\u30e1\u30f3\u30c8\u6b04\u306b\u6587\u5b57\u3092\u5165\u529b\u3057\u307e\u3059\u3002<br>\u5165\u529b\u3055\u308c\u305f\u6587\u5b57\u306fStorage\u3092\u7d4c\u7531\u3057\u3066\u300cSessionStorage\u300d\u300cLocalStorage\u300d\u30c6\u30ad\u30b9\u30c8\u306b\u30b3\u30d4\u30fc\u3055\u308c\u307e\u3059\u3002<br><a href=\"http:\/\/labs.opentone.co.jp\/wp-content\/uploads\/2013\/07\/sample5_2_1.png\"><\/a><\/p>\n\n\n\n<p>\u305d\u3057\u3066\u3001\u53f3\u5074\u306e\u30bf\u30d6\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<br><a href=\"http:\/\/labs.opentone.co.jp\/wp-content\/uploads\/2013\/07\/sample5_2_2.png\"><\/a><br>\u4f55\u3082\u3057\u3066\u64cd\u4f5c\u3057\u3066\u3044\u306a\u3044\u306e\u306b\u300cLocalStorage\u300d\u30c6\u30ad\u30b9\u30c8\u306b\u300c\u5de6\u5074\u300d\u3068\u8868\u793a\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u3067\u3082\u3001\u300cSessionStorage\u300d\u306b\u306f\u7a7a\u767d\u306e\u307e\u307e\u3067\u3059\u3002<br>\u3053\u308c\u306f\u300143\u884c\u76ee<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>window.onstorage<\/p><\/blockquote>\n\n\n\n<p><strong>Storage\u30a4\u30d9\u30f3\u30c8<\/strong>\u304c\u767a\u751f\u3057\u305f\u6642\u306b\u3001\u5404\u30c6\u30ad\u30b9\u30c8\u3092\u5909\u66f4\u3057\u3066\u3044\u307e\u3059\u3002<br>Storage\u30a4\u30d9\u30f3\u30c8\u3068\u306f\u30b9\u30c8\u30ec\u30fc\u30b8\u9818\u57df\u304c\u5909\u5316\u3057\u305f\u6642\u306b\u767a\u751f\u3059\u308b\u30a4\u30d9\u30f3\u30c8\u3067\u3001\u4e0b\u8a18\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092\u5b9f\u88c5\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p><a href=\"http:\/\/www.w3.org\/TR\/webstorage\/#the-storage-event\" target=\"_blank\" rel=\"noreferrer noopener\">http:\/\/www.w3.org\/TR\/webstorage\/#the-storage-event<\/a><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">[code language=\"Java\"]\n[Constructor(DOMString type, optional StorageEventInit eventInitDict)]\ninterface StorageEvent : Event {\n  readonly attribute DOMString key;\n  readonly attribute DOMString? oldValue;\n  readonly attribute DOMString? newValue;\n  readonly attribute DOMString url;\n  readonly attribute Storage? storageArea;\n};\n\ndictionary StorageEventInit : EventInit {\n  DOMString key;\n  DOMString? oldValue;\n  DOMString? newValue;\n  DOMString url;\n  Storage? storageArea;\n};\n[\/code]<\/pre>\n\n\n\n<p>W3C\u3067\u306f\u30b9\u30c8\u30ec\u30fc\u30b8\u9818\u57df\u300c<strong>SessionStorage<\/strong>\u300d\u300c<strong>LocalStorage<\/strong>\u300d\u306b\u5909\u5316\u304c\u8d77\u3053\u3063\u305f\u5834\u5408\u306b\u30a4\u30d9\u30f3\u30c8\u304c\u767a\u751f\u3059\u308b\u3068\u3042\u308a\u307e\u3059\u304c\u3001Chrome\u3067\u306f\u300cLocalStorage\u300d\u306e\u307f\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002<br>\u300cSessionStorage\u300d\u304c\u5909\u66f4\u3055\u308c\u305f\u3068\u304d\u306b\u3001\u4ed6\u306e\u30bf\u30d6\u3068\u540c\u671f\u3092\u53d6\u308b\u306a\u3093\u3066\u3053\u3068\u306f\u73fe\u6642\u70b9\u3067\u306f\u3067\u304d\u306a\u3044\u3088\u3046\u3067\u3059\u3002<br>\u305d\u3082\u305d\u3082\u300cSessionStorage\u300d\u306f\u30bb\u30c3\u30b7\u30e7\u30f3\u5225\u306b\u30c7\u30fc\u30bf\u3092\u7ba1\u7406\u3059\u308b\u305f\u3081\u306e\u4ed5\u69d8\u3067\u3059\u304b\u3089\u306d\u3002\u540c\u671f\u3092\u53d6\u308a\u305f\u3044\u306e\u3067\u3042\u308c\u3070\u300cLocalStorage\u300d\u3092\u4f7f\u3044\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u6b21\u306b\u3001\u53f3\u5074\u306e\u30bf\u30d6\u306e\u30b3\u30e1\u30f3\u30c8\u6b04\u3092\u5165\u529b\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"613\" height=\"204\" src=\"https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2021\/03\/sample5_3_2.png\" alt=\"\" class=\"wp-image-655\" srcset=\"https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2021\/03\/sample5_3_2.png 613w, https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2021\/03\/sample5_3_2-300x100.png 300w\" sizes=\"(max-width: 613px) 100vw, 613px\" \/><\/figure>\n\n\n\n<p>\u300cSessionStorage\u300d\u300cLocalStorage\u300d\u3068\u3082\u306b\u300c\u53f3\u5074\u300d\u3068\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u305d\u3057\u3066\u3001\u5de6\u5074\u306e\u30bf\u30d6\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"613\" height=\"204\" src=\"https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2021\/03\/sample5_3_1.png\" alt=\"\" class=\"wp-image-656\" srcset=\"https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2021\/03\/sample5_3_1.png 613w, https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2021\/03\/sample5_3_1-300x100.png 300w\" sizes=\"(max-width: 613px) 100vw, 613px\" \/><\/figure>\n\n\n\n<p>\u300cLocalStorage\u300d\u3060\u3051\u300c\u53f3\u5074\u300d\u3068\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u6700\u5f8c\u306b\u4e00\u65e6\u30bf\u30d6\u3092\u7d42\u4e86\u3057\u3001\u518d\u5ea6\u958b\u3044\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"612\" height=\"204\" src=\"https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2021\/03\/sample5_4.png\" alt=\"\" class=\"wp-image-657\" srcset=\"https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2021\/03\/sample5_4.png 612w, https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2021\/03\/sample5_4-300x100.png 300w\" sizes=\"(max-width: 612px) 100vw, 612px\" \/><\/figure>\n\n\n\n<p>\u300cLocalStorage\u300d\u306b\u6700\u5f8c\u306b\u5165\u529b\u3057\u305f\u300c\u53f3\u5074\u300d\u306e\u6587\u5b57\u304c\u8868\u793a\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Web Storage\u306e\u4f7f\u3044\u3069\u3053\u308d<\/h3>\n\n\n\n<p>\u5b9f\u969b\u306b\u52d5\u304b\u3057\u3066\u307f\u3066\u305d\u306e\u9055\u3044\u304c\u5206\u304b\u3063\u305f\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>SessionStorage\u306f\u3001\u30c6\u30f3\u30dd\u30e9\u30ea\u7684\u306a\u4f7f\u3044\u65b9\u306b\u5411\u3044\u3066\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u30b7\u30e7\u30c3\u30d4\u30f3\u30b0\u30ab\u30fc\u30c9\u3084\u30da\u30fc\u30b8\u9001\u308a\u304c\u3042\u308b\u4e00\u89a7\u753b\u9762\u306a\u3069\u3002<\/p>\n\n\n\n<p>\u4e00\u65b9LocalStorage\u306f\u3001\u610f\u56f3\u7684\u306b\u524a\u9664\u3057\u306a\u3051\u308c\u3070\u6d88\u3048\u306a\u3044\u3053\u3068\u304b\u3089\u3001\u500b\u306e\u8ffd\u8de1\u3084\u30aa\u30f3\u30e9\u30a4\u30f3\u304b\u3089\u5207\u308a\u96e2\u3057\u3066\u30aa\u30d5\u30e9\u30a4\u30f3\u3067\u64cd\u4f5c\u3059\u308b\u5834\u5408\u306e\u4fdd\u5b58\u5148\u306a\u3069\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\n\n\n\n<p>Web Storage\u306f<strong>\u5358\u306b\u30ed\u30fc\u30ab\u30eb\u306b\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3059\u308b<\/strong>\u3068\u3044\u3046\u610f\u5473\u5408\u3044\u306e\u307b\u304b\u306b\u3001\u4eca\u307e\u3067\u306f\u5165\u529b\u3057\u305f\u30c7\u30fc\u30bf\u3092\u30da\u30fc\u30b8\u9593\u3067\u6301\u3061\u56de\u308b\u306b\u306f\u3001\u4e00\u65e6\u30b5\u30fc\u30d0\u3078\u9001\u4fe1\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3068\u3053\u308d\u3092\u3001Web Storage\u3092\u4f7f\u3046\u3053\u3068\u306b\u3088\u3063\u3066\u305d\u3046\u3044\u3063\u305f\u3057\u304c\u3089\u307f\u304b\u3089\u89e3\u653e\u3055\u308c\u3001<strong>\u30b5\u30fc\u30d0\u304c\u672c\u5f53\u306b\u5fc5\u8981\u306a\u3068\u304d\u3060\u3051\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u542b\u3081\u308c\u3070\u3088\u304f\u306a\u3063\u305f<\/strong>\u3068\u3044\u3046\u610f\u5473\u3082\u3042\u308a\u307e\u3059\u3002\u5fc5\u8981\u306a\u3068\u304d\u306b\u5fc5\u8981\u306a\u60c5\u5831\u3060\u3051\u30b5\u30fc\u30d0\u3078\u9001\u4fe1\u3059\u308b\u3053\u3068\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u8efd\u6e1b\u3001\u30aa\u30d5\u30e9\u30a4\u30f3\u6642\u306e\u52d5\u4f5c\u4fdd\u969c\u306a\u3069\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u3064\u306a\u304c\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u524d\u63d0\u306eWeb\u30a2\u30d7\u30ea\u306e\u6982\u5ff5\u3092\u5909\u3048\u308b\u4ed5\u69d8\u3067\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6700\u5f8c\u306b<\/h3>\n\n\n\n<p>\u3044\u304b\u304c\u3067\u3057\u305f\u3067\u3057\u3087\u3046\u304b\u3002\u4eca\u56de\u306fWeb Storage\u3068\u3044\u3046\u30ed\u30fc\u30ab\u30eb\u306b\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3059\u308b\u6280\u8853\u3092\u7d39\u4ecb\u3057\u307e\u3057\u305f\u304c\u3001\u300cOffline Web Applications\u300d\u3068\u3044\u3046\u3001Web\u30a2\u30d7\u30ea\u81ea\u4f53\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u4ed5\u69d8\u3082W3C\u306f\u4f5c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p><a href=\"http:\/\/www.w3.org\/TR\/offline-webapps\/\">http:\/\/www.w3.org\/TR\/offline-webapps\/<\/a><\/p>\n\n\n\n<p>\u3053\u308c\u3089\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u300cWeb\u30a2\u30d7\u30ea\u3060\u3051\u3069\u901a\u4fe1\u3092\u307b\u3068\u3093\u3069\u884c\u308f\u306a\u3044\u300d\u306a\u3093\u3066\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u308c\u306f\u307e\u305f\u306e\u6a5f\u4f1a\u306b\u7d39\u4ecb\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u306e\u3067\u3001\u304a\u697d\u3057\u307f\u306b\u3002&nbsp;<\/p>\n<div class=\"opent-_2\" style=\"margin-top: 10px;margin-right: 10px;margin-bottom: 10px;margin-left: 10px;\" id=\"opent-3954814963\"><a href=\"https:\/\/www.opentone.co.jp\/backlog\/\" aria-label=\"twitter_backlogskt_new\"><img src=\"https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2023\/02\/twitter_backlogskt_new.jpg\" alt=\"\"  srcset=\"https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2023\/02\/twitter_backlogskt_new.jpg 1024w, https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2023\/02\/twitter_backlogskt_new-300x157.jpg 300w, https:\/\/www.opentone.co.jp\/ot-lab\/wp-content\/uploads\/sites\/11\/2023\/02\/twitter_backlogskt_new-768x401.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" width=\"384\" height=\"200\"   \/><\/a><\/div>","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f t.yamagishi\u3067\u3059\u3002 \u4eca\u56de\u306fWeb 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