{"id":700,"date":"2018-12-14T21:41:40","date_gmt":"2018-12-14T12:41:40","guid":{"rendered":"https:\/\/mell0w-5phere.net\/jaded5phere\/?p=700"},"modified":"2018-12-14T21:41:40","modified_gmt":"2018-12-14T12:41:40","slug":"firebase-js","status":"publish","type":"post","link":"https:\/\/mell0w-5phere.net\/jaded5phere\/2018\/12\/14\/firebase-js\/","title":{"rendered":"Firebase\u306e\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u3042\u305d\u307c\u3046\u3010Javascript\u3011"},"content":{"rendered":"

\u3000Firebase\u306f\u3059\u3054\u3044(\u3053\u306a\u307f\u304b\u3093)\u3002<\/p>\n

\n

\u3000<\/p>\n

\u30fbFirebase\u3063\u3066\u306a\u306b<\/h4>\n

\u3000Firebase\u3068\u306f\u3001Google\u304c\u8cb7\u53ce\u3057\u3066\u3057\u307e\u3063\u305f<\/del>\u63d0\u4f9b\u3059\u308bmBaaS\u306e\u3072\u3068\u3064\u3067\u3042\u308b\u3002\u4ee5\u524d<\/a>\u7d39\u4ecb\u3057\u305fNCMB\u3068\u4f3c\u305f\u3088\u3046\u306a\u3084\u3064\u306a\u306e\u3067\u3001mBaaS\u306b\u3064\u3044\u3066\u306e\u8aac\u660e\u306f\u5272\u611b\u3059\u308b\u3002<\/p>\n

\u3000<\/p>\n

\u30fb\u3053\u3053\u304c\u3059\u3054\u3044<\/h4>\n

\u3000\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u5909\u66f4\u304c\u3042\u308b\u3068\u3001\u76f4\u3061\u306b\u305d\u308c\u3092\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u306b\u901a\u77e5\u3057\u3066\u304f\u308c\u308b\u3002<\/p>\n

\u3000<\/p>\n

\u30fb\u3064\u304b\u3044\u304b\u305f<\/h4>\n

\u3000\u4eca\u56de\u306fJavascript\u3067\u306e\u4f7f\u3044\u65b9\u3092\u7d39\u4ecb\u3057\u3066\u3044\u304f\u3002<\/p>\n

\u3000<\/p>\n

\u30fb\u6e96\u5099<\/h4>\n

\u3000\u307e\u305a\u306fFirebase\u306e\u30b3\u30f3\u30bd\u30fc\u30eb\u3092\u958b\u304d\u3001\u300c\u30a2\u30d7\u30ea\u3092\u8ffd\u52a0\u300d\u2192\u300c\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u306bFirebase\u3092\u8ffd\u52a0\u300d\u304b\u3089\u521d\u671f\u5316\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30fc\u3057\u3066\u3001\u4f7f\u3044\u305f\u3044\u30da\u30fc\u30b8\u306e<head><\/code>\u30bf\u30b0\u306e\u4e2d\u306b\u30da\u30fc\u30b9\u30c8\u3059\u308b\u3002\u304a\u308f\u308a\u3002\u306a\u3093\u304b\u3053\u3093\u306a\u611f\u3058\u306e\u30b3\u30fc\u30c9\u3067\u3042\u308b\u3002\u307b\u3052\u307b\u3052\u3075\u304c\u3075\u304c\u3057\u3066\u308b\u3068\u3053\u308d\u306f\u30a2\u30d7\u30ea\u306b\u56fa\u6709\u306e\u5024\u304c\u5165\u308b\u3002<\/p>\n

<script src=\"https:\/\/www.gstatic.com\/firebasejs\/5.7.0\/firebase.js\"><\/script>\r\n<script>\r\n  \/\/ Initialize Firebase\r\n  var config = {\r\n    apiKey: \"\u307b\u3052\u307b\u3052\",\r\n    authDomain: \"\u3075\u304c\u3075\u304c.firebaseapp.com\",\r\n    databaseURL: \"https:\/\/\u3075\u304c\u3075\u304c.firebaseio.com\",\r\n    projectId: \"\u3075\u304c\u3075\u304c\",\r\n    storageBucket: \"\u3075\u304c\u3075\u304c.appspot.com\",\r\n    messagingSenderId: \"\u3074\u3088\u3074\u3088\"\r\n  };\r\n  firebase.initializeApp(config);\r\n<\/script><\/code><\/pre>\n
\u3000<\/p>\n
\u30fb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u57fa\u672c\u64cd\u4f5c<\/h4>\n
\u3000ref(path)<\/code>\u3067path<\/code>\u3078\u306e\u53c2\u7167\u3092\u53d6\u5f97\u3057\u3001\u305d\u3053\u304b\u3089\u306e\u64cd\u4f5c\u306f\u57fa\u672c\u7684\u306b\u4ee5\u4e0b\u306e4\u3064\u3002
\n\u3000<\/p>\n\n\n\n\n\n
\u66f8\u304d\u8fbc\u307f<\/td>\nset<\/code><\/td>\n<\/tr>\n
\u66f4\u65b0<\/td>\nupdate<\/code><\/td>\n<\/tr>\n
\u8aad\u307f\u53d6\u308a<\/td>\non<\/code>\u304a\u3088\u3073once<\/code><\/td>\n<\/tr>\n
\u524a\u9664<\/td>\nremove<\/code>\u304b\u3001null<\/code>\u3092\u66f8\u304d\u8fbc\u3080<\/td>\n<\/tr>\n<\/table>\n
\u3000\u3067\u306f\u3001\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306e\u4f8b\u3092\u793a\u3057\u3066\u3044\u3053\u3046\u3002<\/p>\n
\u30fb\u66f8\u304d\u8fbc\u307f<\/h4>\n
var db=firebase.database();\r\n\r\ndb.ref('test1').set(\"hoge\");\r\n\r\ndb.ref('test2').set({\r\n    \"fuga1\":\"fuga\",\r\n    \"fuga2\":\"fugafuga\"\r\n});<\/code><\/pre>\n
\u3000\u3053\u3046\u306a\u308b\u3002\"\"
\n\u3000<\/p>\n
\u30fb\u66f4\u65b0\u3057\u3066\u307f\u308b<\/h4>\n
db.ref('test2').update({\r\n    \"fuga2\":{\r\n        \"fuga2_1\":\"fugafuga_fuga\",\r\n        \"fuga2_2\":\"fugafuga_fugafuga\"\r\n    }\r\n});\r\n\r\n\/\/\u5024\u3092\u76f4\u63a5\u6307\u5b9a\u3057\u3066update\u306f\u3067\u304d\u306a\u3044\r\ndb.ref('test3').update(\"piyo???\"); \/\/\u2192\u30a8\u30e9\u30fc\r\n\r\n\/\/\u5b58\u5728\u3057\u306a\u3044\u8981\u7d20\u3078\u306eupdate\u306f\u53ef\r\ndb.ref('test4').update({\r\n    \"piyo\":\"piyo????\"\r\n});<\/code><\/pre>\n
\u3000\u3053\u3046\u306a\u308b\u3002\"\"
\n\u3000\u30b3\u30fc\u30c9\u4e2d\u306b\u3082\u66f8\u3044\u305f\u901a\u308a\u3001update<\/code>\u306e\u5f15\u6570\u306b\u76f4\u63a5\u3001\u5024\u3092\u6307\u5b9a\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001
\nError: Reference.update failed: First argument  must be an object containing the children to replace.<\/span><\/code>
\n\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308a(\u306a\u3093\u3067\u305d\u3046\u3044\u3046\u4ed5\u69d8\u306b\u3057\u305f\u3093\u3060\u308d\u3046\u304b)\u3001\u307e\u305f\u3001\u5b58\u5728\u3057\u306a\u3044\u8981\u7d20\u3092update<\/code>\u3059\u308b\u3068\u8981\u7d20\u304c\u8ffd\u52a0\u3067\u304d\u308b\u3002\u3042\u3068\u3001update<\/code>\u306e\u4ee3\u308f\u308a\u306bset<\/code>\u3092\u4f7f\u3063\u3066\u3057\u307e\u3046\u3068\u3001\u66f4\u65b0\u3057\u305f\u304b\u3063\u305f\u8981\u7d20\u4ee5\u5916\u306e\u5144\u5f1f\u8981\u7d20\u304c\u3059\u3079\u3066\u7121\u3078\u3068\u9084\u5143\u3055\u308c\u3066\u3057\u307e\u3046\u306e\u3067\u6c17\u3092\u4ed8\u3051\u3088\u3046\u3002<\/p>\n
\u3000\u3061\u306a\u307f\u306bset<\/code>\u3068update<\/code>\u306e\u7b2c\u4e8c\u5f15\u6570\u306b\u306f\u95a2\u6570\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u66f8\u304d\u8fbc\u307f\u306e\u6210\u5426\u3092\u53d7\u3051\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u3053\u306e\u3088\u3046\u306b\u66f8\u3051\u3070\u3088\u3044\u3002<\/p>\n
db.ref('test5').update({\r\n    \"hoge2\": \"hogeeeeee\"\r\n},function(e){\r\n    if(e==null){ \r\n        \/\/\u6210\u529f\u6642\u306e\u51e6\u7406\r\n        console.log(\"Success!\");\r\n    }else{ \r\n        \/\/\u5931\u6557\u6642\u306e\u51e6\u7406\r\n        console.log(e);\r\n    }\r\n});<\/code><\/pre>\n
\u3000<\/p>\n
\u30fb\u8aad\u307f\u53d6\u308a<\/h4>\n
\u3000\u3053\u3053\u304cFirebase\u306e\u809d\u3067\u3042\u308b\u3002\u524d\u8ff0\u306e\u901a\u308a\u3001\u8aad\u307f\u53d6\u308a\u30e1\u30bd\u30c3\u30c9\u306fon<\/code>\u304a\u3088\u3073once<\/code>\u306e2\u3064\u3042\u308b\u3002\u5b57\u9762\u304b\u3089\u306a\u3093\u3068\u306a\u304f\u308f\u304b\u308b\u901a\u308a\u3001once<\/code>\u306f\u4e00\u56de\u3060\u3051\u8aad\u307f\u53d6\u308a\u3001on<\/code>\u306f\u8981\u7d20\u306b\u66f4\u65b0\u304c\u3042\u308b\u305f\u3073\u306b(\u5b50\u8981\u7d20\u3084\u5b6b\u8981\u7d20\u306a\u3069\u3001\u3088\u308a\u4e0b\u306e\u968e\u5c64\u306e\u66f4\u65b0\u3067\u3082)\u547c\u3073\u51fa\u3055\u308c\u308b\u3002
\n\u3000\u3057\u305f\u304c\u3063\u3066\u3001\u5358\u7d14\u306b\u8aad\u307f\u53d6\u308a\u305f\u3044\u3060\u3051\u306a\u3089\u3070\u3001once<\/code>\u3092\u7528\u3044\u3066<\/p>\n
db.ref('test2').once('value',function(obj){\r\n    var key=obj.key; \/\/\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30ad\u30fc\u3092\u53d6\u5f97\r\n    var data=obj.val(); \/\/\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u53d6\u5f97\r\n    console.log(key);\r\n    console.log(data);\r\n});\r\n<\/code><\/pre>\n
\u3068\u3059\u308b\u3053\u3068\u3067\u8aad\u307f\u53d6\u308a\u304c\u3067\u304d\u308b\u3002\u3053\u306e\u5834\u5408\u306f\u3001<\/p>\n
test2\r\n{\r\n  \"fuga1\": \"fuga\",\r\n  \"fuga2\": {\r\n    \"fuga2_1\": \"fugafuga_fuga\",\r\n    \"fuga2_2\": \"fugafuga_fugafuga\"\r\n  }\r\n}<\/code><\/pre>\n
\u3068\u3044\u3046\u51fa\u529b\u304c\u5f97\u3089\u308c\u308b\u3002
\n\u3000\u307e\u305f\u3001on<\/code>\u30e1\u30bd\u30c3\u30c9\u306b\u304a\u3044\u3066\u306f\u7b2c\u4e00\u5f15\u6570\u306e\u5024\u306b\u3088\u3063\u3066\u691c\u77e5\u3059\u308b\u66f4\u65b0\u306e\u7a2e\u985e\u3092\u6307\u5b9a\u3067\u304d\u308b\u3002<\/p>\n\n\n\n\n\n
value<\/code><\/td>\n\u3069\u3093\u306a\u66f4\u65b0\u3067\u3042\u3063\u3066\u3082\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u305d\u306e\u3082\u306e\u3092\u53d6\u5f97\u3059\u308b<\/td>\n<\/tr>\n
child_added<\/code><\/td>\n\u5b50\u8981\u7d20\u304c\u8ffd\u52a0\u3055\u308c\u305f\u3068\u304d\u3001\u8ffd\u52a0\u3055\u308c\u305f\u5b50\u8981\u7d20\u3092\u53d6\u5f97\u3059\u308b<\/td>\n<\/tr>\n
child_changed<\/code><\/td>\n\u5b50\u8981\u7d20\u304c\u5909\u66f4\u3055\u308c\u305f\u3068\u304d\u3001\u5909\u66f4\u3055\u308c\u305f\u5f8c\u306e\u5b50\u8981\u7d20\u3092\u53d6\u5f97\u3059\u308b<\/td>\n<\/tr>\n
child_removed<\/code><\/td>\n\u5b50\u8981\u7d20\u304c\u524a\u9664\u3055\u308c\u305f\u3068\u304d\u3001\u524a\u9664\u3055\u308c\u308b\u524d\u306e\u5b50\u8981\u7d20\u3092\u53d6\u5f97\u3059\u308b<\/td>\n<\/tr>\n<\/table>\n
\u3000\u6c17\u3092\u4ed8\u3051\u308b\u3079\u304d\u306f\u3001\u3053\u3053\u3067\u53d6\u5f97\u3055\u308c\u308b\u5b50\u8981\u7d20\u306f\u3042\u304f\u307e\u3067\u53c2\u7167\u306e\u76f4\u4e0b\u306e\u5b50\u8981\u7d20\u3067\u3042\u308b\u3068\u3044\u3046\u70b9\u3067\u3042\u308b\u3002\u4eca\u56de\u306e\u4f8b\u3067\u3044\u3048\u3070\u3001\u305f\u3068\u3048\u3070<\/p>\n
db.ref('test2').on('child_changed', function (obj) {\r\n    console.log(obj.val());\r\n});<\/code><\/pre>\n
\u3068\u3044\u3046\u3088\u3046\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u305f\u3068\u3059\u308b\u3068\u3001\"fuga1\"<\/code>\u306e\u5024\u304c\"fu\"<\/code>\u306b\u5909\u66f4\u3055\u308c\u305f\u3068\u304d\u306f\"fu\"<\/code>\u304c\u8fd4\u308b\u304c\u3001\"fuga2_2\"<\/code>\u306e\u5024\u304c\"fugaaaaa\"<\/code>\u306b\u5909\u66f4\u3055\u308c\u305f\u3068\u304d\u306f\u3001\"fugaaaaa\"<\/code>\u304c\u8fd4\u3063\u3066\u304f\u308b\u306e\u3067\u306f\u306a\u304f\"fuga2\"<\/code>\u5168\u4f53\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u8fd4\u3063\u3066\u304f\u308b\u3002\u8a00\u8449\u3067\u306f\u308f\u304b\u308a\u306b\u304f\u3044\u306e\u3067\u56f3\u306b\u3059\u308b\u3068\u3053\u3046\u3060\u3002
\n\u3000\"\"<\/p>\n
\u30fb\u5fdc\u7528\u7de8<\/h4>\n
\u3000\u4ee5\u4e0a\u3067\u57fa\u672c\u64cd\u4f5c\u306f\u7d42\u308f\u308a\u306a\u306e\u3067\u3001\u4f7f\u3048\u308b\u3068\u4fbf\u5229\u306a\u5fdc\u7528\u7de8\u306b\u5165\u308d\u3046\u3002<\/p>\n
\u30fbpush<\/code><\/h4>\n
\u3000push<\/code>\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u4e0a\u306b\u4e00\u610f\u306a\u30ad\u30fc\u3092\u6301\u3064\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3078\u306e\u53c2\u7167\u3092\u751f\u6210\u3059\u308b\u3002\u96d1\u306b\u8a00\u3048\u3070\u3001(\u305f\u3076\u3093)\u7d76\u5bfe\u88ab\u3089\u306a\u3044ID\u751f\u6210\u30e1\u30bd\u30c3\u30c9\u3060\u3068\u601d\u3048\u3070\u3044\u3044\u3002
\n\u3000\u6b21\u306e\u30b3\u30fc\u30c9\u3092\u547c\u3073\u51fa\u3057\u3066\u307f\u308b\u3068\u3001<\/p>\n
var pushed=db.ref('test6').push();\r\nvar id=pushed.key; \/\/ID\u3092\u53d6\u5f97\r\npushed.set(\"hoge!?\");\r\n<\/code><\/pre>\n
\u4f55\u3084\u3089\u602a\u3057\u3052\u306a\u6587\u5b57\u5217\u304c\u51fa\u73fe\u3059\u308b\u3002\"\"<\/p>\n
\u3000\u5b9f\u306f\u3053\u306e\u6587\u5b57\u5217\u306f120\u30d3\u30c3\u30c8\u306e\u30c7\u30fc\u30bf\u306b\u76f8\u5f53\u3057\u3001\u305d\u306e\u3046\u3061\u5148\u982d48\u30d3\u30c3\u30c8\u306f\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u304b\u3089\u3001\u6b8b\u308a72\u30d3\u30c3\u30c8\u306f\u30e9\u30f3\u30c0\u30e0\u306b\u751f\u6210\u3055\u308c\u308b\u3002\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306b\u57fa\u3065\u304f48\u30d3\u30c3\u30c8\u5206\u306b\u3088\u3063\u3066\u3001\u3053\u306e\u6587\u5b57\u5217\u306f\u8f9e\u66f8\u9806\u306b\u4e26\u3079\u305f\u6642\u306b\u304d\u3061\u3093\u3068\u6642\u7cfb\u5217\u9806\u306b\u306a\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u306e\u3060(\u3053\u306eID\u306f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u304c\u751f\u6210\u3057\u3066\u3044\u308b\u306e\u3067\u53b3\u5bc6\u306b\u306f\u6642\u8a08\u306e\u30ba\u30ec\u306b\u3088\u3063\u3066\u524d\u5f8c\u3059\u308b\u53ef\u80fd\u6027\u306f\u3042\u308b\u304c\u3001\u307b\u3068\u3093\u3069\u6642\u7cfb\u5217\u9806\u306b\u306a\u308b\u3068\u601d\u3063\u3066\u3088\u3044)\u3002
\n\u3000\u3053\u308c\u304c\u5a01\u529b\u3092\u767a\u63ee\u3059\u308b\u306e\u306f\u8907\u6570\u7aef\u672b\u304c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3088\u3046\u306a\u4ed5\u7d44\u307f\u3092\u4f5c\u308b\u3068\u304d\u3067\u3042\u308b\u3002\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u9593\u3067ID\u304c\u88ab\u3089\u306a\u3044\u3088\u3046\u793a\u3057\u5408\u308f\u305b\u308b\u5fc5\u8981\u3082\u306a\u3051\u308c\u3070\u3001\u6642\u7cfb\u5217\u3067\u4e26\u3079\u66ff\u3048\u308b\u305f\u3081\u306e\u30c7\u30fc\u30bf\u3092\u542b\u3081\u3066\u3084\u308b\u5fc5\u8981\u3082\u306a\u3044\u306e\u3060\u304b\u3089\u697d\u306a\u3082\u306e\u3067\u3042\u308b\u3002
\n\u3000\u3055\u3089\u306b\u3001\u3053\u306eID\u306f\u4e0a\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u4e2d\u306b\u3042\u308b\u3088\u3046\u306bkey<\/code>\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u53d6\u5f97\u3067\u304d\u308b\u306e\u3067\u3001\u3044\u308d\u3044\u308d\u306a\u30c7\u30fc\u30bf\u3092\u5206\u6563\u3055\u305b\u3066\u4fdd\u5b58\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u306b\u306a\u308b\u3002\u3053\u3046\u3059\u308b\u3053\u3068\u3067\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u3067\u8aad\u307f\u8fbc\u3080\u5fc5\u8981\u304c\u3042\u308b\u30c7\u30fc\u30bf\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3001\u662f\u975e\u6d3b\u7528\u3057\u305f\u3044\u3002<\/p>\n
\u30fb\u5b9f\u8df5\u7de8<\/h4>\n
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<html>\r\n<head>\r\n    <title>Chat Sample<\/title>\r\n    <!-- \u3053\u3053\u306bFirebase\u306e\u521d\u671f\u5316\u30b3\u30fc\u30c9\u3092\u30da\u30fc\u30b9\u30c8 -->\r\n    <style> \/* css\u3067\u6700\u4f4e\u9650\u306e\u4f53\u88c1\u3092\u6574\u3048\u308b *\/\r\n        #e_content {\r\n            height: 100px;\r\n            width: 100%;\r\n        }\r\n        #container {\r\n            width: 600px;\r\n            margin: 0 auto;\r\n        }\r\n        #form {\r\n            width: 100%;\r\n        }\r\n        #main {\r\n            padding: 15px;\r\n            border: 1px #333 solid;\r\n            max-height:450px;\r\n            overflow-y:scroll;\r\n        }\r\n        .msg {\r\n            border-bottom: 1px dashed #666\r\n        }\r\n    <\/style>\r\n<\/head>\r\n<body> <!-- html\u90e8\u5206 -->\r\n    <div id=\"container\">\r\n        <div id=\"main\">\r\n        <\/div>\r\n        <div>\r\n            <table id=\"form\">\r\n                <tr>\r\n                    <td>Your Name<\/td>\r\n                    <td><input id=\"e_name\"><\/td><\/tr>\r\n                <tr>\r\n                    <td>Content<\/td>\r\n                    <td><textarea id=\"e_content\"><\/textarea><\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><\/td>\r\n                    <td><Button onclick=\"submit()\">Submit<\/Button><\/td>\r\n                <\/tr>\r\n            <\/table>\r\n        <\/div>\r\n    <\/div>\r\n<\/body>\r\n<script> \/\/\u5236\u5fa1\u90e8\u5206\r\n    var db = firebase.database();\r\n    db.ref('msg').on(\"child_added\", function(obj) {\r\n        var data = obj.val();\r\n        var name = data.name;\r\n        var content = data.content;\r\n        var e = document.createElement(\"div\");\r\n        e.setAttribute(\"class\", \"msg\");\r\n        e.innerHTML = \"<p class='name'>Name: \" + name + \"<\/p><p class='content'>Content: \" + content + \"<\/p>\";\r\n        var box=document.getElementById(\"main\");\r\n        box.appendChild(e);\r\n        box.scrollTop=box.scrollHeight;\r\n    })\r\n    function submit() {\r\n        var el_n = document.getElementById(\"e_name\")\r\n        var el_c = document.getElementById(\"e_content\")\r\n        var name = el_n.value,\r\n            content = el_c.value;\r\n        if (name == \"\" || content == \"\") {\r\n            alert(\"Please fill out the blank!\");\r\n            return;\r\n        }\r\n        el_c.value = \"\";\r\n        db.ref('msg').push().set({\r\n            \"name\": name,\r\n            \"content\": content\r\n        });\r\n    }\r\n<\/script>\r\n<\/html><\/code><\/pre>\n
\u3000\u3069\u3046\u3060\u308d\u3046\u304b\u3002Javascript\u90e8\u5206\u306f30\u884c\u3082\u306a\u3044\u7a0b\u5ea6\u3001\u5168\u4f53\u3067\u3082100\u884c\u306b\u6e80\u305f\u306a\u3044\u304c\u3001\u3053\u308c\u3067\u3082\u304d\u3061\u3093\u3068\u63b2\u793a\u677f\u3068\u3057\u3066\u306e\u5f79\u5272\u306f\u679c\u305f\u3059\u7a0b\u5ea6\u306e\u30e2\u30ce\u304c\u3067\u304d\u3066\u3044\u308b\u306f\u305a\u3067\u3042\u308b\u3002\u5b9f\u969b\u306b\u52d5\u304b\u3057\u305f\u3044\u5834\u5408\u306f\u3053\u3053<\/a>\u306b\u3053\u308c\u3068\u540c\u3058\u3082\u306e\u3092\u7f6e\u3044\u3066\u3044\u308b\u306e\u3067\u3001\u8a66\u3057\u3066\u307f\u3066\u307b\u3057\u3044(\u8a18\u4e8b\u306e\u611f\u60f3\u3092\u304a\u5f85\u3061\u3057\u3066\u304a\u308a\u307e\u3059)\u3002<\/p>\n
\n
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\u3000Firebase\u306f\u3059\u3054\u3044(\u3053\u306a\u307f\u304b\u3093)\u3002 \u3000 \u30fbFirebase\u3063\u3066\u306a\u306b \u3000Firebase\u3068\u306f\u3001Google\u304c\u8cb7\u53ce\u3057\u3066\u3057\u307e\u3063\u305f\u63d0\u4f9b\u3059\u308bmBaaS\u306e\u3072\u3068\u3064\u3067\u3042\u308b\u3002\u4ee5\u524d\u7d39\u4ecb\u3057\u305fNCMB\u3068\u4f3c\u305f\u3088\u3046\u306a\u3084\u3064\u306a\u306e\u3067\u3001mBaaS\u306b<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[60,4,61],"_links":{"self":[{"href":"https:\/\/mell0w-5phere.net\/jaded5phere\/wp-json\/wp\/v2\/posts\/700"}],"collection":[{"href":"https:\/\/mell0w-5phere.net\/jaded5phere\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mell0w-5phere.net\/jaded5phere\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mell0w-5phere.net\/jaded5phere\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mell0w-5phere.net\/jaded5phere\/wp-json\/wp\/v2\/comments?post=700"}],"version-history":[{"count":23,"href":"https:\/\/mell0w-5phere.net\/jaded5phere\/wp-json\/wp\/v2\/posts\/700\/revisions"}],"predecessor-version":[{"id":729,"href":"https:\/\/mell0w-5phere.net\/jaded5phere\/wp-json\/wp\/v2\/posts\/700\/revisions\/729"}],"wp:attachment":[{"href":"https:\/\/mell0w-5phere.net\/jaded5phere\/wp-json\/wp\/v2\/media?parent=700"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mell0w-5phere.net\/jaded5phere\/wp-json\/wp\/v2\/categories?post=700"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mell0w-5phere.net\/jaded5phere\/wp-json\/wp\/v2\/tags?post=700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}