聊天室副本 | JavaScript 程式專案

{"id":47298,"student_id":1639,"content":"var name = prompt(\"名子?\")||\"匿名\";\r\nvar id = Math.floor(Math.random()*1000000);\r\nvar record = [];\r\nvar users = {\r\n};\r\n\r\nusers[id] = {\r\n    id: id,\r\n    name: name,\r\n    time: Date.now()\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\u003crecord.length;i++){\r\n        print(record[i],200,(15*(record.length-i))+20,\"black\",15);\r\n    }\r\n    print('===再現使用者===')\r\n    var y = 0;\r\n    for(var _ in users){\r\n        print(users[_].name,10,20+20*y);\r\n        y+=1;\r\n        if(Date.now() - users[_].time \u003e 1000){\r\n            print(users[_].name + \"leave\",200,(15*(record.length-i))+20,\"black\",15);\r\n            delete users[_];\r\n        }\r\n\r\n    }\r\n});\r\n\r\nwhen('click',function(){\r\n    var message = prompt(\"!\");\r\n    var time = new Date();\r\n    record.push(\"[\"+time.toLocaleTimeString()+\"] \"+name+\": \"+message);\r\n    DB.broadcast(\"message\",\"[\"+time.toLocaleTimeString()+\"]\"+name+\": \"+message);\r\n});\r\n\r\nDB.onMessage(\"message\",function(data){\r\n    record.push(data);\r\n});\r\n\r\nDB.onMessage(\"update\",function(data){\r\n    if(users[data.id] == undefined){\r\n        print(data.name + \"加入\", 200, 200, \"black\", 15);\r\n    }\r\n    users[data.id] = data;\r\n});","created_at":"2018-11-03T09:56:27.030+08:00","updated_at":"2019-11-05T15:29:37.231+08:00","name":"聊天室 副本","language":"javascript","screenshot":{"url":"https://cdn1.koding.school/uploads/project/screenshot/47298/fa696484d4bf7980d07de194d0d2e07b.jpg"},"parent_id":34007,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":99,"hashid":"zpes3r3q","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}