{ "id": "mnQYCc5rJwgfKGyog5OejQGc", "question": "Choose correct example of closure", "answers": [ "function a()\n{\n\n}\nfunction b()\n{\n b.prototype=new a();\n}", "function counter(){\n var c = 1;\n return c++;\n}", "function counter()\n{\n var c = 1;\n return function(){\n return c++;\n }\n}" ], "correctAnswers": [ "function counter()\n{\n var c = 1;\n return function(){\n return c++;\n }\n}" ], "incorrectAnswers": [ "function a()\n{\n\n}\nfunction b()\n{\n b.prototype=new a();\n}", "function counter(){\n var c = 1;\n return c++;\n}" ], "allowCustomAnswer": false, "canEdit": false, "allowFileAnswer": false, "multi": false, "explanation": "", "canLike": false, "likes": 0, "allAnswers": [ { "text": "function counter()\n{\n var c = 1;\n return function(){\n return c++;\n }\n}", "correct": true, "selected": false }, { "text": "function counter(){\n var c = 1;\n return c++;\n}", "correct": false, "selected": false }, { "text": "function a()\n{\n\n}\nfunction b()\n{\n b.prototype=new a();\n}", "correct": false, "selected": false } ] }