計時器範例 | JavaScript Programming Project

{"id":27709,"student_id":10,"content":"// 遊戲開始的時間點\nvar startTime = Date.now();\n\nforever(function(){\n\n    // 遊戲當前的時間點\n    var currentTime = Date.now();\n    \n    // 遊戲經過的時間，現在時間減去開始時間\n    var passTime = currentTime - startTime;\n    \n    // 計算剩下時間\n    var countDown = Math.ceil((1000*10 - passTime)/1000);\n    \n    if (passTime \u003c 1000*10) {\n        print(`遊戲倒數 ${countDown} 秒`, 200, 200, \"black\", 40);\n    } else {\n        print(\"遊戲時間到！！\", 200, 200, \"black\", 40);\n    }\n});","created_at":"2018-04-30T10:02:18.323+08:00","updated_at":"2019-10-18T09:51:40.502+08:00","name":"計時器範例","language":"javascript","screenshot":{"url":"/uploads/project/screenshot/27709/d89cf0c024c2f6ce62e32127f75c858f.jpg"},"parent_id":2,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":516,"hashid":"5j3s3gye","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}