emptyJS | JavaScript 程式專案

{"id":16088,"student_id":98,"content":"var comments = [];\r\nvar name = prompt(\"名字?\");\r\nvar users = {};\r\nvar id = Math.floor(Math.random()*1000000);\r\nusers[id] = {\r\n    id:id,\r\n    name:name,\r\n    time:Date.now()\r\n}\r\n\r\nforever(function(){\r\n    users[id].time = Date.now();\r\n    DB.broadcast(\"update\",users[id]);\r\n    for(var i=0;i\u003ccomments.length;i++){\r\n        print(comments[i],150,10+i*20,\"blue\",15)\r\n    }\r\n    print(\"==在線玩家==\");\r\n    var i = 0;\r\n    for(var j in users){\r\n        i++;\r\n        print(users[j].name,10,10+i*20);\r\n        if(Date.now() \u003e users[j].time + 15000){\r\n            comments.push(users[j].name + '離開了聊天室');\r\n            delete users[j];\r\n        } \r\n    }\r\n});\r\n\r\nwhen('click',function(){\r\n    //使用prompt取得msg的內容\r\n    var msg = prompt(\"留言?\")\r\n    var time = (new Date).toLocaleTimeString();\r\n    msg = time + name + \":\"+msg;\r\n    //將msg的內容加到陣列裡(push)\r\n    comments.push(msg);\r\n    DB.broadcast(\"message\",msg)\r\n})\r\n\r\nDB.onMessage(\"message\",function(data){\r\n    //將data加進comments\r\n    comments.push(data);\r\n})\r\n\r\nDB.onMessage(\"update\",function(data){\r\n    if (users[data.id] == undefined) {\r\n        comments.push(data.name + '加入了聊天室');\r\n    }\r\n    users[data.id] = data;\r\n})\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n// var comments = [];\r\n// var name = prompt(\"What's your name?\") || \"匿名\"\r\n// var id = Math.floor(Math.random()*1000000);\r\n// var users = {};\r\n\r\n// users[id] = {\r\n//     id: id,\r\n//     name: name,\r\n//     time: Date.now()\r\n// }\r\n// forever(function(){\r\n//     //廣播,更新自己的資料\r\n//     users[id].time = Date.now();\r\n//     DB.broadcast('update',users[id]);\r\n\r\n//     for(var i=0;i\u003ccomments.length;i++){\r\n//         print(comments[i],150,10+i*20,\"red\",15);\r\n//     }\r\n//     print(\"===線上的玩家===\")\r\n//     var i=0;\r\n//     //variable j in case collided\r\n//     for(var j in users){\r\n//         i++;\r\n//         print(users[j].name,10,10+i*20,\"blue\",15);\r\n//         if(Date.now() \u003e users[j].time + 150000){\r\n//             delete users[j];\r\n//         }\r\n//     }\r\n// });\r\n// //挑戰題可以將新增訊息寫成functionn\r\n// when('click',function(){\r\n//     var msg = prompt(\"?\");\r\n//     var time = (new Date).toLocaleTimeString();\r\n//     msg = \"［\" + time + \"］\" + name + \":\" + msg;\r\n//     comments.push(msg);\r\n//     DB.broadcast(\"message\",msg);\r\n// });\r\n\r\n// DB.onMessage(\"message\",function(data){\r\n//     comments.push(data);\r\n// })\r\n// //接收到更新，玩家清單加入其他使用者資料\r\n// DB.onMessage('update',function(data){\r\n//     users[data.id] = data;\r\n// })\r\n","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2019-11-09T12:22:54.180+08:00","name":"emptyJS","language":"javascript","screenshot":{"url":"https://cdn6.koding.school/uploads/project/screenshot/16088/b8388a0c2d67a5d27ef38b4af87d0288.jpg"},"parent_id":14981,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":219,"hashid":"yeysvjpq","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}