測試你的反應速度 | JavaScript 程式專案

{"id":34708,"student_id":173,"content":"var time = 50\nvar a = 0\nvar startTime \nforever(function() {\n    if (a == 0) {\n        setBackdrop(\"red\");\n        print(\"Wait for green\", 70, 170, \"white\", 80)\n    } else if (a == 1) {\n        setBackdrop(\"green\")\n        print(\"Click!\", 150, 150, \"white\", 150)\n        if(startTime==undefined)\n         startTime = Date.now();\n        }\n\n    if (time == Math.floor(Math.random()*500)) {\n        a = 1\n    }\n})\nwhen('click', function() {\n    setBackdrop(\"blue\")\n    if (a == 0) {\n        print(\"Too soon!\",150,160,\"white\",80)\n        stop()\n    }else if(a==1){\n    print((Date.now()-startTime)+\"ms\",150,160,\"white\",80)\n        console.log(Date.now()-startTime)\n        stop()\n        \n    }\n});\n","created_at":"2018-07-15T20:17:56.233+08:00","updated_at":"2019-10-05T20:57:42.451+08:00","name":"測試你的反應速度","language":"javascript","screenshot":{"url":"https://cdn9.koding.school/uploads/project/screenshot/34708/7adc291ab1b5f2626c200cc48180206d.jpg"},"parent_id":2,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":148,"hashid":"wdksw26k","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}