{"id":5509,"date":"2018-07-07T20:08:25","date_gmt":"2018-07-07T11:08:25","guid":{"rendered":"http:\/\/www.code-magagine.com\/?p=5509"},"modified":"2023-05-27T21:01:42","modified_gmt":"2023-05-27T12:01:42","slug":"%e3%80%90javascript%e3%80%91%e3%80%8cstorage%e3%82%aa%e3%83%96%e3%82%b8%e3%82%a7%e3%82%af%e3%83%88%e3%80%8d%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6","status":"publish","type":"post","link":"http:\/\/www.code-magagine.com\/?p=5509","title":{"rendered":"\u3010JavaScript\u3011\u300cWeb Storage(\u30b9\u30c8\u30ec\u30fc\u30b8)\u300d\u3001\u30ed\u30fc\u30ab\u30eb\u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u5b9f\u88c5\u306a\u3069"},"content":{"rendered":"

JavaScript\u3067\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3059\u308b\u4ed5\u7d44\u307f\u3068\u3057\u3066\u306f\u3001\u5f93\u6765\u306f\u30af\u30c3\u30ad\u30fc\u3092\u4f7f\u3063\u3066\u304d\u307e\u3057\u305f\u304c\u3001\u73fe\u5728\u306f\u300cWeb Storage(\u30b9\u30c8\u30ec\u30fc\u30b8)\u300d<\/strong><\/span>\u306b\u3088\u308b\u4fdd\u5b58\u304c\u901a\u5e38\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30af\u30c3\u30ad\u30fc\u3068\u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u9055\u3044<\/h2>\n

\u84c4\u7a4d\u3067\u304d\u308b\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\u304c\u7570\u306a\u308b\u3068\u3044\u3046\u4ee5\u5916\u306b\u3082\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306a\u9055\u3044\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n
\u9805\u76ee<\/th>\n\u30b9\u30c8\u30ec\u30fc\u30b8<\/th>\n\u30af\u30c3\u30ad\u30fc<\/th>\n<\/tr>\n
\u30b5\u30a4\u30ba\u306e\u4e0a\u9650<\/td>\n5MB<\/td>\n4KB<\/td>\n<\/tr>\n
\u30c7\u30fc\u30bf\u306e\u6709\u52b9\u671f\u9650<\/td>\n\u306a\u3057<\/td>\n\u3042\u308a<\/td>\n<\/tr>\n
\u30c7\u30fc\u30bf\u901a\u4fe1<\/td>\n\u767a\u751f\u3057\u306a\u3044<\/td>\n\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u90fd\u5ea6\u3001\u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\u3059\u308b\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u5206\u985e<\/h2>\n

\u30b9\u30c8\u30ec\u30fc\u30b8\u306f\u3001\u4e0b\u8a18\u306e2\u7a2e\u985e\u306b\u5206\u304b\u308c\u307e\u3059\u3002<\/p>\n

    \n
  • \u30ed\u30fc\u30ab\u30eb\u30b9\u30c8\u30ec\u30fc\u30b8(Local Storage)<\/li>\n
  • \u30bb\u30c3\u30b7\u30e7\u30f3\u30b9\u30c8\u30ec\u30fc\u30b8(Session Storage)<\/li>\n<\/ul>\n

    \u30ed\u30fc\u30ab\u30eb\u30b9\u30c8\u30ec\u30fc\u30b8(Local Storage)<\/h3>\n

    \u30aa\u30ea\u30b8\u30f3\u5358\u4f4d<\/strong><\/span>\u3067\u30c7\u30fc\u30bf\u3092\u7ba1\u7406\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

    \u30a6\u30a4\u30f3\u30c9\u30a6\u3001\u30bf\u30d6\u3092\u307e\u305f\u3044\u3067\u30c7\u30fc\u30bf\u5171\u6709\u304c\u53ef\u80fd\u3067\u3001\u30d6\u30e9\u30a6\u30b6\u3092\u9589\u3058\u3066\u3082\u30c7\u30fc\u30bf\u306f\u7dad\u6301<\/strong><\/span>\u3055\u308c\u307e\u3059\u3002<\/p>\n

    \u30aa\u30ea\u30b8\u30f3\u3068\u306f\uff1f<\/h4>\n

    \u300c\u30b9\u30ad\u30fc\u30de\u540d:\/\/\u30db\u30b9\u30c8\u540d:\u30dd\u30fc\u30c8\u756a\u53f7\u300d\u306e\u7d44\u307f\u5408\u308f\u305b\u306e\u5358\u4f4d\u306e\u3053\u3068<\/strong><\/span>\u3067\u3059\u3002\u4ed6\u306e\u30aa\u30ea\u30b8\u30f3\uff08\u4ed6\u306eURL\u306e\u30da\u30fc\u30b8\uff09\u304b\u3089\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u3001\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u51fa\u305b\u306a\u3044\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

    \u5b9f\u88c5<\/h4>\n
    \u30ed\u30fc\u30ab\u30eb\u30b9\u30c8\u30ec\u30fc\u30b8\u306b\u5024\u3092\u683c\u7d0d\u3059\u308b\u3002<\/h5>\n
    localStorage.setItem(\"\u30ad\u30fc\", \"\u30d0\u30ea\u30e5\u30fc\");<\/pre>\n
    \u5b9f\u6226\u3067\u306f\u3001\u6587\u5b57\u5217\u3060\u3051\u3058\u3083\u306a\u304f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306a\u3069\u3092\u683c\u7d0d\u3057\u305f\u3044\u3053\u3068\u3082\u591a\u3044\u3067\u3057\u3087\u3046\u3002\u305d\u306e\u5834\u5408\u306fJSON.stringify\u30e1\u30bd\u30c3\u30c9<\/strong><\/span>\u306b\u3088\u3063\u3066string\u578b\u306b\u5909\u63db\u3057\u3066\u683c\u7d0d\u3057\u307e\u3059\u3002<\/p>\n
    localStorage.setItem(\"\u30ad\u30fc\", JSON.stringify(\u683c\u7d0d\u3057\u305f\u3044\u30aa\u30d6\u30b8\u30a7\u30af\u30c8));<\/pre>\n
    \u30ed\u30fc\u30ab\u30eb\u30b9\u30c8\u30ec\u30fc\u30b8\u304b\u3089\u5024\u3092\u53d6\u308a\u51fa\u3059\u3002<\/h5>\n
    localStorage.getItem(\"\u30ad\u30fc\");<\/pre>\n
    \u3053\u306e\u307e\u307e\u3067\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3082\u6587\u5b57\u5217\u3068\u3057\u3066\u53d6\u308a\u51fa\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u306e\u3067\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5909\u63db\u3057\u3066\u53d6\u308a\u51fa\u3059\u969b\u306f\u3001JSON.parse\u30e1\u30bd\u30c3\u30c9<\/strong><\/span>\u3092\u4f7f\u7528\u3057\u3066\u53d6\u308a\u51fa\u3057\u307e\u3059\u3002<\/p>\n
    JSON.parse(localStorage.getItem(\"\u30ad\u30fc\") as string)<\/pre>\n
    \u300cas string\u300d\u306fTypeScript\u306e\u5834\u5408\u306b\u5ff5\u306e\u305f\u3081\u3064\u3051\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n
    \u30bb\u30c3\u30b7\u30e7\u30f3\u30b9\u30c8\u30ec\u30fc\u30b8(Session Storage)<\/h3>\n
    \u73fe\u5728\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\uff08\u30d6\u30e9\u30a6\u30b6\u3092\u958b\u3044\u3066\u3044\u308b\u9593\uff09\u3060\u3051\u7dad\u6301\u3055\u308c\u308b\u30c7\u30fc\u30bf\u7ba1\u7406\u3067\u3059\u3002<\/p>\n
    \u30d6\u30e9\u30a6\u30b6\u3092\u9589\u3058\u305f\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u3001\u30c7\u30fc\u30bf\u306f\u66f8\u304d\u3055\u308c\u3066\u3001\u30a6\u30a4\u30f3\u30c9\u30a6\u3084\u3001\u30bf\u30d6\u3092\u307e\u305f\u3044\u3067\u30c7\u30fc\u30bf\u5171\u6709\u3092\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3044\u3067\u3059\u3002<\/p>\n
    \u300c\u30ed\u30fc\u30ab\u30eb\u30b9\u30c8\u30ec\u30fc\u30b8\u300d\u3092\u5229\u7528\u3059\u308b\u304b\u3001\u300c\u30bb\u30c3\u30b7\u30e7\u30f3\u30b9\u30c8\u30ec\u30fc\u30b8\u300d\u3092\u5229\u7528\u3059\u308b\u304b\uff1f<\/h2>\n
    \u300c\u30ed\u30fc\u30ab\u30eb\u30b9\u30c8\u30ec\u30fc\u30b8\u300d\u306b\u306f\u4e0b\u8a18\u306e\u554f\u984c\u304c\u3042\u308b\u305f\u3081\u3001\u512a\u5148\u5ea6\u7684\u306b\u306f\u3001\u307e\u305a\u306f\u300c\u30bb\u30c3\u30b7\u30e7\u30f3\u30b9\u30c8\u30ec\u30fc\u30b8\u300d\u306e\u63a1\u7528\u3092\u691c\u8a0e\u3059\u308b<\/strong><\/span>\u3068\u3088\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n
    \u305d\u308c\u3067\u3001\u3069\u3046\u3057\u3066\u3082\u307e\u304b\u306a\u3048\u306a\u3044\u5834\u5408\u306f\u3001\u300c\u30ed\u30fc\u30ab\u30eb\u30b9\u30c8\u30ec\u30fc\u30b8\u300d\u306e\u4f7f\u7528\u3092\u3057\u307e\u3059\u3002<\/p>\n
    \u30ed\u30fc\u30ab\u30eb\u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u554f\u984c\u70b9<\/h3>\n
      \n
    • \u660e\u793a\u7684\u306b\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3057\u306a\u3044\u9650\u308a\u306f\u6d88\u3048\u306a\u3044\u306e\u3067\u3001\u30b4\u30df\u304c\u6b8b\u308a\u3084\u3059\u3044<\/li>\n
    • \u540c\u4e00\u306e\u30aa\u30ea\u30b8\u30f3\u3067\u8907\u6570\u30a2\u30d7\u30ea\u3092\u7a3c\u52d5\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u5909\u6570\u540d\u304c\u885d\u7a81\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n
      \u73fe\u5728\u4f7f\u308f\u308c\u3066\u3044\u308bWeb Storage\u306e\u5185\u5bb9\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\uff1f<\/h2>\n
      Google Chrome\u306e\u958b\u767a\u8005\u30c4\u30fc\u30eb\u3067\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
      \"\"<\/p>\n","protected":false},"excerpt":{"rendered":"JavaScript\u3067\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3059\u308b\u4ed5\u7d44\u307f\u3068\u3057\u3066\u306f\u3001\u5f93\u6765\u306f\u30af\u30c3\u30ad\u30fc\u3092\u4f7f\u3063\u3066\u304d\u307e\u3057\u305f\u304c\u3001\u73fe\u5728\u306f\u300cWeb Storage(\u30b9\u30c8\u30ec\u30fc\u30b8)\u300d\u306b\u3088\u308b\u4fdd\u5b58\u304c\u901a\u5e38\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002 \u30af\u30c3\u30ad\u30fc\u3068\u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u9055\u3044 \u84c4\u7a4d\u3067 […]","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\/5509"}],"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=5509"}],"version-history":[{"count":10,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/5509\/revisions"}],"predecessor-version":[{"id":20301,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/5509\/revisions\/20301"}],"wp:attachment":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5509"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5509"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5509"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}